Use failure instead of error_chain. (#586) r=nalexander

This commit is contained in:
Nick Alexander 2018-06-20 14:56:08 -07:00
commit 60a57ea493
71 changed files with 898 additions and 964 deletions

View file

@ -28,7 +28,8 @@ rustc_version = "0.2"
[dependencies]
chrono = "0.4"
error-chain = { git = "https://github.com/rnewman/error-chain", branch = "rnewman/sync" }
failure = "0.1.1"
failure_derive = "0.1.1"
lazy_static = "0.2"
time = "0.1"
uuid = { version = "0.5", features = ["v4", "serde"] }

View file

@ -6,6 +6,7 @@ workspace = ".."
[dependencies]
chrono = { version = "0.4", features = ["serde"] }
enum-set = { git = "https://github.com/rnewman/enum-set" }
failure = "0.1.1"
indexmap = "1"
lazy_static = "0.2"
num = "0.1"

View file

@ -10,6 +10,8 @@
/// Cache traits.
use failure;
use std::collections::{
BTreeSet,
};
@ -33,8 +35,7 @@ pub trait CachedAttributes {
fn get_entids_for_value(&self, attribute: Entid, value: &TypedValue) -> Option<&BTreeSet<Entid>>;
}
pub trait UpdateableCache {
type Error;
fn update<I>(&mut self, schema: &Schema, retractions: I, assertions: I) -> Result<(), Self::Error>
pub trait UpdateableCache<Error=failure::Error> {
fn update<I>(&mut self, schema: &Schema, retractions: I, assertions: I) -> Result<(), Error>
where I: Iterator<Item=(Entid, Entid, TypedValue)>;
}

View file

@ -10,6 +10,7 @@
extern crate chrono;
extern crate enum_set;
extern crate failure;
extern crate indexmap;
extern crate ordered_float;
extern crate uuid;

View file

@ -8,7 +8,8 @@ default = []
sqlcipher = ["rusqlite/sqlcipher"]
[dependencies]
error-chain = { git = "https://github.com/rnewman/error-chain", branch = "rnewman/sync" }
failure = "0.1.1"
failure_derive = "0.1.1"
indexmap = "1"
itertools = "0.7"
lazy_static = "0.2"

View file

@ -11,7 +11,10 @@
#![allow(dead_code)]
use edn;
use errors::{ErrorKind, Result};
use errors::{
DbError,
Result,
};
use edn::types::Value;
use edn::symbols;
use entids;
@ -156,7 +159,7 @@ lazy_static! {
:db/cardinality :db.cardinality/many}}"#;
edn::parse::value(s)
.map(|v| v.without_spans())
.map_err(|_| ErrorKind::BadBootstrapDefinition("Unable to parse V1_SYMBOLIC_SCHEMA".into()))
.map_err(|_| DbError::BadBootstrapDefinition("Unable to parse V1_SYMBOLIC_SCHEMA".into()))
.unwrap()
};
}
@ -207,14 +210,14 @@ fn symbolic_schema_to_triples(ident_map: &IdentMap, symbolic_schema: &Value) ->
for (ident, mp) in m {
let ident = match ident {
&Value::Keyword(ref ident) => ident,
_ => bail!(ErrorKind::BadBootstrapDefinition(format!("Expected namespaced keyword for ident but got '{:?}'", ident))),
_ => bail!(DbError::BadBootstrapDefinition(format!("Expected namespaced keyword for ident but got '{:?}'", ident))),
};
match *mp {
Value::Map(ref mpp) => {
for (attr, value) in mpp {
let attr = match attr {
&Value::Keyword(ref attr) => attr,
_ => bail!(ErrorKind::BadBootstrapDefinition(format!("Expected namespaced keyword for attr but got '{:?}'", attr))),
_ => bail!(DbError::BadBootstrapDefinition(format!("Expected namespaced keyword for attr but got '{:?}'", attr))),
};
// We have symbolic idents but the transactor handles entids. Ad-hoc
@ -229,20 +232,20 @@ fn symbolic_schema_to_triples(ident_map: &IdentMap, symbolic_schema: &Value) ->
Some(TypedValue::Keyword(ref k)) => {
ident_map.get(k)
.map(|entid| TypedValue::Ref(*entid))
.ok_or(ErrorKind::UnrecognizedIdent(k.to_string()))?
.ok_or(DbError::UnrecognizedIdent(k.to_string()))?
},
Some(v) => v,
_ => bail!(ErrorKind::BadBootstrapDefinition(format!("Expected Mentat typed value for value but got '{:?}'", value)))
_ => bail!(DbError::BadBootstrapDefinition(format!("Expected Mentat typed value for value but got '{:?}'", value)))
};
triples.push((ident.clone(), attr.clone(), typed_value));
}
},
_ => bail!(ErrorKind::BadBootstrapDefinition("Expected {:db/ident {:db/attr value ...} ...}".into()))
_ => bail!(DbError::BadBootstrapDefinition("Expected {:db/ident {:db/attr value ...} ...}".into()))
}
}
},
_ => bail!(ErrorKind::BadBootstrapDefinition("Expected {...}".into()))
_ => bail!(DbError::BadBootstrapDefinition("Expected {...}".into()))
}
Ok(triples)
}
@ -263,11 +266,11 @@ fn symbolic_schema_to_assertions(symbolic_schema: &Value) -> Result<Vec<Value>>
value.clone()]));
}
},
_ => bail!(ErrorKind::BadBootstrapDefinition("Expected {:db/ident {:db/attr value ...} ...}".into()))
_ => bail!(DbError::BadBootstrapDefinition("Expected {:db/ident {:db/attr value ...} ...}".into()))
}
}
},
_ => bail!(ErrorKind::BadBootstrapDefinition("Expected {...}".into()))
_ => bail!(DbError::BadBootstrapDefinition("Expected {...}".into()))
}
Ok(assertions)
}

View file

@ -106,7 +106,7 @@ use db::{
};
use errors::{
ErrorKind,
DbError,
Result,
};
@ -1155,15 +1155,14 @@ impl CachedAttributes for AttributeCaches {
}
impl UpdateableCache for AttributeCaches {
type Error = ::errors::Error;
fn update<I>(&mut self, schema: &Schema, retractions: I, assertions: I) -> ::std::result::Result<(), Self::Error>
fn update<I>(&mut self, schema: &Schema, retractions: I, assertions: I) -> Result<()>
where I: Iterator<Item=(Entid, Entid, TypedValue)> {
self.update_with_fallback(None, schema, retractions, assertions)
}
}
impl AttributeCaches {
fn update_with_fallback<I>(&mut self, fallback: Option<&AttributeCaches>, schema: &Schema, retractions: I, assertions: I) -> ::std::result::Result<(), ::errors::Error>
fn update_with_fallback<I>(&mut self, fallback: Option<&AttributeCaches>, schema: &Schema, retractions: I, assertions: I) -> Result<()>
where I: Iterator<Item=(Entid, Entid, TypedValue)> {
let r_aevs = retractions.peekable();
self.accumulate_into_cache(fallback, schema, r_aevs, AccumulationBehavior::Remove)?;
@ -1237,7 +1236,7 @@ impl SQLiteAttributeCache {
let a = attribute.into();
// The attribute must exist!
let _ = schema.attribute_for_entid(a).ok_or_else(|| ErrorKind::UnknownAttribute(a))?;
let _ = schema.attribute_for_entid(a).ok_or_else(|| DbError::UnknownAttribute(a))?;
let caches = self.make_mut();
caches.forward_cached_attributes.insert(a);
caches.repopulate(schema, sqlite, a)
@ -1248,7 +1247,7 @@ impl SQLiteAttributeCache {
let a = attribute.into();
// The attribute must exist!
let _ = schema.attribute_for_entid(a).ok_or_else(|| ErrorKind::UnknownAttribute(a))?;
let _ = schema.attribute_for_entid(a).ok_or_else(|| DbError::UnknownAttribute(a))?;
let caches = self.make_mut();
caches.reverse_cached_attributes.insert(a);
@ -1278,8 +1277,7 @@ impl SQLiteAttributeCache {
}
impl UpdateableCache for SQLiteAttributeCache {
type Error = ::errors::Error;
fn update<I>(&mut self, schema: &Schema, retractions: I, assertions: I) -> ::std::result::Result<(), Self::Error>
fn update<I>(&mut self, schema: &Schema, retractions: I, assertions: I) -> Result<()>
where I: Iterator<Item=(Entid, Entid, TypedValue)> {
self.make_mut().update(schema, retractions, assertions)
}
@ -1356,7 +1354,7 @@ impl InProgressSQLiteAttributeCache {
let a = attribute.into();
// The attribute must exist!
let _ = schema.attribute_for_entid(a).ok_or_else(|| ErrorKind::UnknownAttribute(a))?;
let _ = schema.attribute_for_entid(a).ok_or_else(|| DbError::UnknownAttribute(a))?;
if self.is_attribute_cached_forward(a) {
return Ok(());
@ -1372,7 +1370,7 @@ impl InProgressSQLiteAttributeCache {
let a = attribute.into();
// The attribute must exist!
let _ = schema.attribute_for_entid(a).ok_or_else(|| ErrorKind::UnknownAttribute(a))?;
let _ = schema.attribute_for_entid(a).ok_or_else(|| DbError::UnknownAttribute(a))?;
if self.is_attribute_cached_reverse(a) {
return Ok(());
@ -1388,7 +1386,7 @@ impl InProgressSQLiteAttributeCache {
let a = attribute.into();
// The attribute must exist!
let _ = schema.attribute_for_entid(a).ok_or_else(|| ErrorKind::UnknownAttribute(a))?;
let _ = schema.attribute_for_entid(a).ok_or_else(|| DbError::UnknownAttribute(a))?;
// TODO: reverse-index unique by default?
let reverse_done = self.is_attribute_cached_reverse(a);
@ -1427,8 +1425,7 @@ impl InProgressSQLiteAttributeCache {
}
impl UpdateableCache for InProgressSQLiteAttributeCache {
type Error = ::errors::Error;
fn update<I>(&mut self, schema: &Schema, retractions: I, assertions: I) -> ::std::result::Result<(), Self::Error>
fn update<I>(&mut self, schema: &Schema, retractions: I, assertions: I) -> Result<()>
where I: Iterator<Item=(Entid, Entid, TypedValue)> {
self.overlay.update_with_fallback(Some(&self.inner), schema, retractions, assertions)
}

View file

@ -10,6 +10,8 @@
#![allow(dead_code)]
use failure::ResultExt;
use std::borrow::Borrow;
use std::collections::HashMap;
use std::collections::hash_map::{
@ -53,7 +55,11 @@ use mentat_core::{
ValueRc,
};
use errors::{ErrorKind, Result, ResultExt};
use errors::{
DbError,
Result,
DbSqlErrorKind,
};
use metadata;
use schema::{
SchemaBuilding,
@ -251,8 +257,8 @@ lazy_static! {
/// documentation](https://www.sqlite.org/pragma.html#pragma_user_version).
fn set_user_version(conn: &rusqlite::Connection, version: i32) -> Result<()> {
conn.execute(&format!("PRAGMA user_version = {}", version), &[])
.chain_err(|| "Could not set_user_version")
.map(|_| ())
.context(DbSqlErrorKind::CouldNotSetVersionPragma)?;
Ok(())
}
/// Get the SQLite user version.
@ -260,10 +266,10 @@ fn set_user_version(conn: &rusqlite::Connection, version: i32) -> Result<()> {
/// Mentat manages its own SQL schema version using the user version. See the [SQLite
/// documentation](https://www.sqlite.org/pragma.html#pragma_user_version).
fn get_user_version(conn: &rusqlite::Connection) -> Result<i32> {
conn.query_row("PRAGMA user_version", &[], |row| {
let v = conn.query_row("PRAGMA user_version", &[], |row| {
row.get(0)
})
.chain_err(|| "Could not get_user_version")
}).context(DbSqlErrorKind::CouldNotGetVersionPragma)?;
Ok(v)
}
/// Do just enough work that either `create_current_version` or sync can populate the DB.
@ -303,8 +309,7 @@ pub fn create_current_version(conn: &mut rusqlite::Connection) -> Result<DB> {
// TODO: validate metadata mutations that aren't schema related, like additional partitions.
if let Some(next_schema) = next_schema {
if next_schema != db.schema {
// TODO Use custom ErrorKind https://github.com/brson/error-chain/issues/117
bail!(ErrorKind::NotYetImplemented(format!("Initial bootstrap transaction did not produce expected bootstrap schema")));
bail!(DbError::NotYetImplemented(format!("Initial bootstrap transaction did not produce expected bootstrap schema")));
}
}
@ -326,7 +331,7 @@ pub fn ensure_current_version(conn: &mut rusqlite::Connection) -> Result<DB> {
CURRENT_VERSION => read_db(conn),
// TODO: support updating an existing store.
v => bail!(ErrorKind::NotYetImplemented(format!("Opening databases with Mentat version: {}", v))),
v => bail!(DbError::NotYetImplemented(format!("Opening databases with Mentat version: {}", v))),
}
}
@ -356,7 +361,7 @@ impl TypedSQLValue for TypedValue {
let u = Uuid::from_bytes(x.as_slice());
if u.is_err() {
// Rather than exposing Uuid's ParseError…
bail!(ErrorKind::BadSQLValuePair(rusqlite::types::Value::Blob(x),
bail!(DbError::BadSQLValuePair(rusqlite::types::Value::Blob(x),
value_type_tag));
}
Ok(TypedValue::Uuid(u.unwrap()))
@ -364,7 +369,7 @@ impl TypedSQLValue for TypedValue {
(13, rusqlite::types::Value::Text(x)) => {
to_namespaced_keyword(&x).map(|k| k.into())
},
(_, value) => bail!(ErrorKind::BadSQLValuePair(value, value_type_tag)),
(_, value) => bail!(DbError::BadSQLValuePair(value, value_type_tag)),
}
}
@ -447,12 +452,12 @@ fn read_ident_map(conn: &rusqlite::Connection) -> Result<IdentMap> {
let v = read_materialized_view(conn, "idents")?;
v.into_iter().map(|(e, a, typed_value)| {
if a != entids::DB_IDENT {
bail!(ErrorKind::NotYetImplemented(format!("bad idents materialized view: expected :db/ident but got {}", a)));
bail!(DbError::NotYetImplemented(format!("bad idents materialized view: expected :db/ident but got {}", a)));
}
if let TypedValue::Keyword(keyword) = typed_value {
Ok((keyword.as_ref().clone(), e))
} else {
bail!(ErrorKind::NotYetImplemented(format!("bad idents materialized view: expected [entid :db/ident keyword] but got [entid :db/ident {:?}]", typed_value)));
bail!(DbError::NotYetImplemented(format!("bad idents materialized view: expected [entid :db/ident keyword] but got [entid :db/ident {:?}]", typed_value)));
}
}).collect()
}
@ -546,9 +551,8 @@ fn search(conn: &rusqlite::Connection) -> Result<()> {
t.a0 = d.a"#;
let mut stmt = conn.prepare_cached(s)?;
stmt.execute(&[])
.map(|_c| ())
.chain_err(|| "Could not search!")
stmt.execute(&[]).context(DbSqlErrorKind::CouldNotSearch)?;
Ok(())
}
/// Insert the new transaction into the `transactions` table.
@ -570,9 +574,7 @@ fn insert_transaction(conn: &rusqlite::Connection, tx: Entid) -> Result<()> {
WHERE added0 IS 1 AND ((rid IS NULL) OR ((rid IS NOT NULL) AND (v0 IS NOT v)))"#;
let mut stmt = conn.prepare_cached(s)?;
stmt.execute(&[&tx])
.map(|_c| ())
.chain_err(|| "Could not insert transaction: failed to add datoms not already present")?;
stmt.execute(&[&tx]).context(DbSqlErrorKind::TxInsertFailedToAddMissingDatoms)?;
let s = r#"
INSERT INTO transactions (e, a, v, tx, added, value_type_tag)
@ -583,9 +585,7 @@ fn insert_transaction(conn: &rusqlite::Connection, tx: Entid) -> Result<()> {
(added0 IS 1 AND search_type IS ':db.cardinality/one' AND v0 IS NOT v))"#;
let mut stmt = conn.prepare_cached(s)?;
stmt.execute(&[&tx])
.map(|_c| ())
.chain_err(|| "Could not insert transaction: failed to retract datoms already present")?;
stmt.execute(&[&tx]).context(DbSqlErrorKind::TxInsertFailedToRetractDatoms)?;
Ok(())
}
@ -607,9 +607,7 @@ fn update_datoms(conn: &rusqlite::Connection, tx: Entid) -> Result<()> {
DELETE FROM datoms WHERE rowid IN ids"#;
let mut stmt = conn.prepare_cached(s)?;
stmt.execute(&[])
.map(|_c| ())
.chain_err(|| "Could not update datoms: failed to retract datoms already present")?;
stmt.execute(&[]).context(DbSqlErrorKind::DatomsUpdateFailedToRetract)?;
// Insert datoms that were added and not already present. We also must expand our bitfield into
// flags. Since Mentat follows Datomic and treats its input as a set, it is okay to transact
@ -632,10 +630,7 @@ fn update_datoms(conn: &rusqlite::Connection, tx: Entid) -> Result<()> {
AttributeBitFlags::UniqueValue as u8);
let mut stmt = conn.prepare_cached(&s)?;
stmt.execute(&[&tx])
.map(|_c| ())
.chain_err(|| "Could not update datoms: failed to add datoms not already present")?;
stmt.execute(&[&tx]).context(DbSqlErrorKind::DatomsUpdateFailedToAdd)?;
Ok(())
}
@ -762,9 +757,7 @@ impl MentatStoring for rusqlite::Connection {
for statement in &statements {
let mut stmt = self.prepare_cached(statement)?;
stmt.execute(&[])
.map(|_c| ())
.chain_err(|| "Failed to create temporary tables")?;
stmt.execute(&[]).context(DbSqlErrorKind::FailedToCreateTempTables)?;
}
Ok(())
@ -827,8 +820,9 @@ impl MentatStoring for rusqlite::Connection {
// TODO: consider ensuring we inserted the expected number of rows.
let mut stmt = self.prepare_cached(s.as_str())?;
stmt.execute(&params)
.context(DbSqlErrorKind::NonFtsInsertionIntoTempSearchTableFailed)
.map_err(|e| e.into())
.map(|_c| ())
.chain_err(|| "Could not insert non-fts one statements into temporary search table!")
}).collect::<Result<Vec<()>>>();
results.map(|_| ())
@ -886,7 +880,7 @@ impl MentatStoring for rusqlite::Connection {
}
},
_ => {
bail!("Cannot transact a fulltext assertion with a typed value that is not :db/valueType :db.type/string");
bail!(DbError::WrongTypeValueForFtsAssertion);
},
}
@ -913,9 +907,7 @@ impl MentatStoring for rusqlite::Connection {
// TODO: consider ensuring we inserted the expected number of rows.
let mut stmt = self.prepare_cached(fts_s.as_str())?;
stmt.execute(&fts_params)
.map(|_c| ())
.chain_err(|| "Could not insert fts values into fts table!")?;
stmt.execute(&fts_params).context(DbSqlErrorKind::FtsInsertionFailed)?;
// Second, insert searches.
// `params` reference computed values in `block`.
@ -943,17 +935,14 @@ impl MentatStoring for rusqlite::Connection {
// TODO: consider ensuring we inserted the expected number of rows.
let mut stmt = self.prepare_cached(s.as_str())?;
stmt.execute(&params)
stmt.execute(&params).context(DbSqlErrorKind::FtsInsertionIntoTempSearchTableFailed)
.map_err(|e| e.into())
.map(|_c| ())
.chain_err(|| "Could not insert FTS statements into temporary search table!")
}).collect::<Result<Vec<()>>>();
// Finally, clean up temporary searchids.
let mut stmt = self.prepare_cached("UPDATE fulltext_values SET searchid = NULL WHERE searchid IS NOT NULL")?;
stmt.execute(&[])
.map(|_c| ())
.chain_err(|| "Could not drop FTS search ids!")?;
stmt.execute(&[]).context(DbSqlErrorKind::FtsFailedToDropSearchIds)?;
results.map(|_| ())
}
@ -985,7 +974,7 @@ pub fn update_partition_map(conn: &rusqlite::Connection, partition_map: &Partiti
let max_vars = conn.limit(Limit::SQLITE_LIMIT_VARIABLE_NUMBER) as usize;
let max_partitions = max_vars / values_per_statement;
if partition_map.len() > max_partitions {
bail!(ErrorKind::NotYetImplemented(format!("No more than {} partitions are supported", max_partitions)));
bail!(DbError::NotYetImplemented(format!("No more than {} partitions are supported", max_partitions)));
}
// Like "UPDATE parts SET idx = CASE WHEN part = ? THEN ? WHEN part = ? THEN ? ELSE idx END".
@ -1001,9 +990,8 @@ pub fn update_partition_map(conn: &rusqlite::Connection, partition_map: &Partiti
// supported in the Clojure implementation at all, and might not be supported in Mentat soon,
// so this is very low priority.
let mut stmt = conn.prepare_cached(s.as_str())?;
stmt.execute(&params[..])
.map(|_c| ())
.chain_err(|| "Could not update partition map")
stmt.execute(&params[..]).context(DbSqlErrorKind::FailedToUpdatePartitionMap)?;
Ok(())
}
/// Update the metadata materialized views based on the given metadata report.
@ -1062,8 +1050,8 @@ SELECT EXISTS
// error message in this case.
if unique_value_stmt.execute(&[to_bool_ref(attribute.unique.is_some()), &entid as &ToSql]).is_err() {
match attribute.unique {
Some(attribute::Unique::Value) => bail!(ErrorKind::SchemaAlterationFailed(format!("Cannot alter schema attribute {} to be :db.unique/value", entid))),
Some(attribute::Unique::Identity) => bail!(ErrorKind::SchemaAlterationFailed(format!("Cannot alter schema attribute {} to be :db.unique/identity", entid))),
Some(attribute::Unique::Value) => bail!(DbError::SchemaAlterationFailed(format!("Cannot alter schema attribute {} to be :db.unique/value", entid))),
Some(attribute::Unique::Identity) => bail!(DbError::SchemaAlterationFailed(format!("Cannot alter schema attribute {} to be :db.unique/identity", entid))),
None => unreachable!(), // This shouldn't happen, even after we support removing :db/unique.
}
}
@ -1077,7 +1065,7 @@ SELECT EXISTS
if !attribute.multival {
let mut rows = cardinality_stmt.query(&[&entid as &ToSql])?;
if rows.next().is_some() {
bail!(ErrorKind::SchemaAlterationFailed(format!("Cannot alter schema attribute {} to be :db.cardinality/one", entid)));
bail!(DbError::SchemaAlterationFailed(format!("Cannot alter schema attribute {} to be :db.cardinality/one", entid)));
}
}
},
@ -2684,8 +2672,8 @@ mod tests {
let report = conn.transact_simple_terms(terms, InternSet::new());
match report.unwrap_err() {
errors::Error(ErrorKind::SchemaConstraintViolation(errors::SchemaConstraintViolation::TypeDisagreements { conflicting_datoms }), _) => {
match report.unwrap_err().downcast() {
Ok(DbError::SchemaConstraintViolation(errors::SchemaConstraintViolation::TypeDisagreements { conflicting_datoms })) => {
let mut map = BTreeMap::default();
map.insert((100, entids::DB_TX_INSTANT, TypedValue::Long(-1)), ValueType::Instant);
map.insert((200, entids::DB_IDENT, TypedValue::typed_string("test")), ValueType::Keyword);

View file

@ -10,6 +10,13 @@
#![allow(dead_code)]
use failure::{
Backtrace,
Context,
Error,
Fail,
};
use std::collections::{
BTreeMap,
BTreeSet,
@ -29,6 +36,16 @@ use types::{
ValueType,
};
#[macro_export]
macro_rules! bail {
($e:expr) => (
return Err($e.into());
)
}
pub type Result<T> = ::std::result::Result<T, Error>;
// TODO Error/ErrorKind pair
#[derive(Clone, Debug, Eq, PartialEq)]
pub enum CardinalityConflict {
/// A cardinality one attribute has multiple assertions `[e a v1], [e a v2], ...`.
@ -46,7 +63,8 @@ pub enum CardinalityConflict {
},
}
#[derive(Clone, Debug, Eq, PartialEq)]
// TODO Error/ErrorKind pair
#[derive(Clone, Debug, Eq, PartialEq, Fail)]
pub enum SchemaConstraintViolation {
/// A transaction tried to assert datoms where one tempid upserts to two (or more) distinct
/// entids.
@ -125,95 +143,145 @@ impl ::std::fmt::Display for InputError {
}
}
error_chain! {
types {
Error, ErrorKind, ResultExt, Result;
}
foreign_links {
Rusqlite(rusqlite::Error);
}
errors {
#[derive(Debug, Fail)]
pub enum DbError {
/// We're just not done yet. Message that the feature is recognized but not yet
/// implemented.
NotYetImplemented(t: String) {
description("not yet implemented")
display("not yet implemented: {}", t)
}
#[fail(display = "not yet implemented: {}", _0)]
NotYetImplemented(String),
/// We've been given a value that isn't the correct Mentat type.
BadValuePair(value: String, value_type: ValueType) {
description("value is not the expected Mentat value type")
display("value '{}' is not the expected Mentat value type {:?}", value, value_type)
}
#[fail(display = "value '{}' is not the expected Mentat value type {:?}", _0, _1)]
BadValuePair(String, ValueType),
/// We've got corrupt data in the SQL store: a value and value_type_tag don't line up.
BadSQLValuePair(value: rusqlite::types::Value, value_type_tag: i32) {
description("bad SQL (value_type_tag, value) pair")
display("bad SQL (value_type_tag, value) pair: ({}, {:?})", value_type_tag, value.data_type())
}
/// TODO _1.data_type()
#[fail(display = "bad SQL (value_type_tag, value) pair: ({:?}, {:?})", _0, _1)]
BadSQLValuePair(rusqlite::types::Value, i32),
// /// The SQLite store user_version isn't recognized. This could be an old version of Mentat
// /// trying to open a newer version SQLite store; or it could be a corrupt file; or ...
// BadSQLiteStoreVersion(version: i32) {
// description("bad SQL store user_version")
// display("bad SQL store user_version: {}", version)
// }
// #[fail(display = "bad SQL store user_version: {}", _0)]
// BadSQLiteStoreVersion(i32),
/// A bootstrap definition couldn't be parsed or installed. This is a programmer error, not
/// a runtime error.
BadBootstrapDefinition(t: String) {
description("bad bootstrap definition")
display("bad bootstrap definition: {}", t)
}
#[fail(display = "bad bootstrap definition: {}", _0)]
BadBootstrapDefinition(String),
/// A schema assertion couldn't be parsed.
BadSchemaAssertion(t: String) {
description("bad schema assertion")
display("bad schema assertion: {}", t)
}
#[fail(display = "bad schema assertion: {}", _0)]
BadSchemaAssertion(String),
/// An ident->entid mapping failed.
UnrecognizedIdent(ident: String) {
description("no entid found for ident")
display("no entid found for ident: {}", ident)
}
#[fail(display = "no entid found for ident: {}", _0)]
UnrecognizedIdent(String),
/// An entid->ident mapping failed.
/// We also use this error if you try to transact an entid that we didn't allocate,
/// in part because we blow the stack in error_chain if we define a new enum!
UnrecognizedEntid(entid: Entid) {
description("unrecognized or no ident found for entid")
display("unrecognized or no ident found for entid: {}", entid)
}
#[fail(display = "unrecognized or no ident found for entid: {}", _0)]
UnrecognizedEntid(Entid),
UnknownAttribute(attr: Entid) {
description("unknown attribute")
display("unknown attribute for entid: {}", attr)
}
#[fail(display = "unknown attribute for entid: {}", _0)]
UnknownAttribute(Entid),
CannotCacheNonUniqueAttributeInReverse(attr: Entid) {
description("cannot reverse-cache non-unique attribute")
display("cannot reverse-cache non-unique attribute: {}", attr)
}
#[fail(display = "cannot reverse-cache non-unique attribute: {}", _0)]
CannotCacheNonUniqueAttributeInReverse(Entid),
SchemaAlterationFailed(t: String) {
description("schema alteration failed")
display("schema alteration failed: {}", t)
}
#[fail(display = "schema alteration failed: {}", _0)]
SchemaAlterationFailed(String),
/// A transaction tried to violate a constraint of the schema of the Mentat store.
SchemaConstraintViolation(violation: SchemaConstraintViolation) {
description("schema constraint violation")
display("schema constraint violation: {}", violation)
}
#[fail(display = "schema constraint violation: {}", _0)]
SchemaConstraintViolation(SchemaConstraintViolation),
/// The transaction was malformed in some way (that was not recognized at parse time; for
/// example, in a way that is schema-dependent).
InputError(error: InputError) {
description("transaction input error")
display("transaction input error: {}", error)
#[fail(display = "transaction input error: {}", _0)]
InputError(InputError),
#[fail(display = "Cannot transact a fulltext assertion with a typed value that is not :db/valueType :db.type/string")]
WrongTypeValueForFtsAssertion,
}
#[derive(Debug)]
pub struct DbSqlError {
inner: Context<DbSqlErrorKind>,
}
impl Fail for DbSqlError {
fn cause(&self) -> Option<&Fail> {
self.inner.cause()
}
fn backtrace(&self) -> Option<&Backtrace> {
self.inner.backtrace()
}
}
impl ::std::fmt::Display for DbSqlError {
fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
::std::fmt::Display::fmt(&self.inner, f)
}
}
impl DbSqlError {
pub fn kind(&self) -> DbSqlErrorKind {
*self.inner.get_context()
}
}
impl From<DbSqlErrorKind> for DbSqlError {
fn from(kind: DbSqlErrorKind) -> DbSqlError {
DbSqlError { inner: Context::new(kind) }
}
}
impl From<Context<DbSqlErrorKind>> for DbSqlError {
fn from(inner: Context<DbSqlErrorKind>) -> DbSqlError {
DbSqlError { inner: inner }
}
}
#[derive(Copy, Clone, Eq, PartialEq, Debug, Fail)]
pub enum DbSqlErrorKind {
#[fail(display = "Could not set_user_version")]
CouldNotSetVersionPragma,
#[fail(display = "Could not get_user_version")]
CouldNotGetVersionPragma,
#[fail(display = "Could not search!")]
CouldNotSearch,
#[fail(display = "Could not insert transaction: failed to add datoms not already present")]
TxInsertFailedToAddMissingDatoms,
#[fail(display = "Could not insert transaction: failed to retract datoms already present")]
TxInsertFailedToRetractDatoms,
#[fail(display = "Could not update datoms: failed to retract datoms already present")]
DatomsUpdateFailedToRetract,
#[fail(display = "Could not update datoms: failed to add datoms not already present")]
DatomsUpdateFailedToAdd,
#[fail(display = "Failed to create temporary tables")]
FailedToCreateTempTables,
#[fail(display = "Could not insert non-fts one statements into temporary search table!")]
NonFtsInsertionIntoTempSearchTableFailed,
#[fail(display = "Could not insert fts values into fts table!")]
FtsInsertionFailed,
#[fail(display = "Could not insert FTS statements into temporary search table!")]
FtsInsertionIntoTempSearchTableFailed,
#[fail(display = "Could not drop FTS search ids!")]
FtsFailedToDropSearchIds,
#[fail(display = "Could not update partition map")]
FailedToUpdatePartitionMap,
}

View file

@ -31,7 +31,7 @@ use edn::{
use errors;
use errors::{
ErrorKind,
DbError,
Result,
};
use schema::{
@ -69,7 +69,7 @@ impl TransactableValue for ValueAndSpan {
Ok(EntityPlace::Entid(entities::Entid::Ident(v)))
} else {
// We only allow namespaced idents.
bail!(ErrorKind::InputError(errors::InputError::BadEntityPlace))
bail!(DbError::InputError(errors::InputError::BadEntityPlace))
}
},
Text(v) => Ok(EntityPlace::TempId(TempId::External(v))),
@ -86,10 +86,10 @@ impl TransactableValue for ValueAndSpan {
EntityPlace::Entid(a) => Ok(EntityPlace::LookupRef(entities::LookupRef { a: entities::AttributePlace::Entid(a), v: v.clone() })),
EntityPlace::TempId(_) |
EntityPlace::TxFunction(_) |
EntityPlace::LookupRef(_) => bail!(ErrorKind::InputError(errors::InputError::BadEntityPlace)),
EntityPlace::LookupRef(_) => bail!(DbError::InputError(errors::InputError::BadEntityPlace)),
}
},
_ => bail!(ErrorKind::InputError(errors::InputError::BadEntityPlace)),
_ => bail!(DbError::InputError(errors::InputError::BadEntityPlace)),
}
},
Nil |
@ -102,7 +102,7 @@ impl TransactableValue for ValueAndSpan {
NamespacedSymbol(_) |
Vector(_) |
Set(_) |
Map(_) => bail!(ErrorKind::InputError(errors::InputError::BadEntityPlace)),
Map(_) => bail!(DbError::InputError(errors::InputError::BadEntityPlace)),
}
}
@ -114,7 +114,7 @@ impl TransactableValue for ValueAndSpan {
impl TransactableValue for TypedValue {
fn into_typed_value(self, _schema: &Schema, value_type: ValueType) -> Result<TypedValue> {
if self.value_type() != value_type {
bail!(ErrorKind::BadValuePair(format!("{:?}", self), value_type));
bail!(DbError::BadValuePair(format!("{:?}", self), value_type));
}
Ok(self)
}
@ -128,7 +128,7 @@ impl TransactableValue for TypedValue {
TypedValue::Long(_) |
TypedValue::Double(_) |
TypedValue::Instant(_) |
TypedValue::Uuid(_) => bail!(ErrorKind::InputError(errors::InputError::BadEntityPlace)),
TypedValue::Uuid(_) => bail!(DbError::InputError(errors::InputError::BadEntityPlace)),
}
}
@ -199,7 +199,7 @@ pub fn replace_lookup_ref<T, U>(lookup_map: &AVMap, desired_or: Either<T, Lookup
LookupRefOrTempId::LookupRef(av) => lookup_map.get(&*av)
.map(|x| lift(*x)).map(Left)
// XXX TODO: fix this error kind!
.ok_or_else(|| ErrorKind::UnrecognizedIdent(format!("couldn't lookup [a v]: {:?}", (*av).clone())).into()),
.ok_or_else(|| DbError::UnrecognizedIdent(format!("couldn't lookup [a v]: {:?}", (*av).clone())).into()),
}
}
}

View file

@ -8,10 +8,8 @@
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
// Oh, error_chain.
#![recursion_limit="128"]
#[macro_use] extern crate error_chain;
extern crate failure;
#[macro_use] extern crate failure_derive;
extern crate indexmap;
extern crate itertools;
#[macro_use] extern crate lazy_static;
@ -31,7 +29,12 @@ use std::iter::repeat;
use itertools::Itertools;
pub use errors::{Error, ErrorKind, ResultExt, Result};
pub use errors::{
DbError,
Result,
SchemaConstraintViolation,
};
#[macro_use] pub mod errors;
mod add_retract_alter_set;
pub mod cache;
@ -39,7 +42,6 @@ pub mod db;
mod bootstrap;
pub mod debug;
pub mod entids;
pub mod errors;
pub mod internal_types; // pub because we need them for building entities programmatically.
mod metadata;
mod schema;
@ -114,8 +116,7 @@ pub fn to_namespaced_keyword(s: &str) -> Result<symbols::Keyword> {
_ => None,
};
// TODO Use custom ErrorKind https://github.com/brson/error-chain/issues/117
nsk.ok_or(ErrorKind::NotYetImplemented(format!("InvalidKeyword: {}", s)).into())
nsk.ok_or(DbError::NotYetImplemented(format!("InvalidKeyword: {}", s)).into())
}
/// Prepare an SQL `VALUES` block, like (?, ?, ?), (?, ?, ?).

View file

@ -24,6 +24,8 @@
//!
//! This module recognizes, validates, applies, and reports on these mutations.
use failure::ResultExt;
use std::collections::{BTreeMap, BTreeSet};
use std::collections::btree_map::Entry;
@ -33,9 +35,8 @@ use add_retract_alter_set::{
use edn::symbols;
use entids;
use errors::{
ErrorKind,
DbError,
Result,
ResultExt,
};
use mentat_core::{
attribute,
@ -131,7 +132,7 @@ pub fn update_attribute_map_from_entid_triples<A, R>(attribute_map: &mut Attribu
builder.component(false);
},
v => {
bail!(ErrorKind::BadSchemaAssertion(format!("Attempted to retract :db/isComponent with the wrong value {:?}.", v)));
bail!(DbError::BadSchemaAssertion(format!("Attempted to retract :db/isComponent with the wrong value {:?}.", v)));
},
}
},
@ -146,15 +147,15 @@ pub fn update_attribute_map_from_entid_triples<A, R>(attribute_map: &mut Attribu
builder.non_unique();
},
v => {
bail!(ErrorKind::BadSchemaAssertion(format!("Attempted to retract :db/unique with the wrong value {}.", v)));
bail!(DbError::BadSchemaAssertion(format!("Attempted to retract :db/unique with the wrong value {}.", v)));
},
}
},
_ => bail!(ErrorKind::BadSchemaAssertion(format!("Expected [:db/retract _ :db/unique :db.unique/_] but got [:db/retract {} :db/unique {:?}]", entid, value)))
_ => bail!(DbError::BadSchemaAssertion(format!("Expected [:db/retract _ :db/unique :db.unique/_] but got [:db/retract {} :db/unique {:?}]", entid, value)))
}
},
_ => {
bail!(ErrorKind::BadSchemaAssertion(format!("Retracting attribute {} for entity {} not permitted.", attr, entid)));
bail!(DbError::BadSchemaAssertion(format!("Retracting attribute {} for entity {} not permitted.", attr, entid)));
},
}
}
@ -168,7 +169,7 @@ pub fn update_attribute_map_from_entid_triples<A, R>(attribute_map: &mut Attribu
entids::DB_DOC => {
match *value {
TypedValue::String(_) => {},
_ => bail!(ErrorKind::BadSchemaAssertion(format!("Expected [... :db/doc \"string value\"] but got [... :db/doc {:?}] for entid {} and attribute {}", value, entid, attr)))
_ => bail!(DbError::BadSchemaAssertion(format!("Expected [... :db/doc \"string value\"] but got [... :db/doc {:?}] for entid {} and attribute {}", value, entid, attr)))
}
},
@ -182,7 +183,7 @@ pub fn update_attribute_map_from_entid_triples<A, R>(attribute_map: &mut Attribu
TypedValue::Ref(entids::DB_TYPE_REF) => { builder.value_type(ValueType::Ref); },
TypedValue::Ref(entids::DB_TYPE_STRING) => { builder.value_type(ValueType::String); },
TypedValue::Ref(entids::DB_TYPE_UUID) => { builder.value_type(ValueType::Uuid); },
_ => bail!(ErrorKind::BadSchemaAssertion(format!("Expected [... :db/valueType :db.type/*] but got [... :db/valueType {:?}] for entid {} and attribute {}", value, entid, attr)))
_ => bail!(DbError::BadSchemaAssertion(format!("Expected [... :db/valueType :db.type/*] but got [... :db/valueType {:?}] for entid {} and attribute {}", value, entid, attr)))
}
},
@ -190,7 +191,7 @@ pub fn update_attribute_map_from_entid_triples<A, R>(attribute_map: &mut Attribu
match *value {
TypedValue::Ref(entids::DB_CARDINALITY_MANY) => { builder.multival(true); },
TypedValue::Ref(entids::DB_CARDINALITY_ONE) => { builder.multival(false); },
_ => bail!(ErrorKind::BadSchemaAssertion(format!("Expected [... :db/cardinality :db.cardinality/many|:db.cardinality/one] but got [... :db/cardinality {:?}]", value)))
_ => bail!(DbError::BadSchemaAssertion(format!("Expected [... :db/cardinality :db.cardinality/many|:db.cardinality/one] but got [... :db/cardinality {:?}]", value)))
}
},
@ -198,40 +199,40 @@ pub fn update_attribute_map_from_entid_triples<A, R>(attribute_map: &mut Attribu
match *value {
TypedValue::Ref(entids::DB_UNIQUE_VALUE) => { builder.unique(attribute::Unique::Value); },
TypedValue::Ref(entids::DB_UNIQUE_IDENTITY) => { builder.unique(attribute::Unique::Identity); },
_ => bail!(ErrorKind::BadSchemaAssertion(format!("Expected [... :db/unique :db.unique/value|:db.unique/identity] but got [... :db/unique {:?}]", value)))
_ => bail!(DbError::BadSchemaAssertion(format!("Expected [... :db/unique :db.unique/value|:db.unique/identity] but got [... :db/unique {:?}]", value)))
}
},
entids::DB_INDEX => {
match *value {
TypedValue::Boolean(x) => { builder.index(x); },
_ => bail!(ErrorKind::BadSchemaAssertion(format!("Expected [... :db/index true|false] but got [... :db/index {:?}]", value)))
_ => bail!(DbError::BadSchemaAssertion(format!("Expected [... :db/index true|false] but got [... :db/index {:?}]", value)))
}
},
entids::DB_FULLTEXT => {
match *value {
TypedValue::Boolean(x) => { builder.fulltext(x); },
_ => bail!(ErrorKind::BadSchemaAssertion(format!("Expected [... :db/fulltext true|false] but got [... :db/fulltext {:?}]", value)))
_ => bail!(DbError::BadSchemaAssertion(format!("Expected [... :db/fulltext true|false] but got [... :db/fulltext {:?}]", value)))
}
},
entids::DB_IS_COMPONENT => {
match *value {
TypedValue::Boolean(x) => { builder.component(x); },
_ => bail!(ErrorKind::BadSchemaAssertion(format!("Expected [... :db/isComponent true|false] but got [... :db/isComponent {:?}]", value)))
_ => bail!(DbError::BadSchemaAssertion(format!("Expected [... :db/isComponent true|false] but got [... :db/isComponent {:?}]", value)))
}
},
entids::DB_NO_HISTORY => {
match *value {
TypedValue::Boolean(x) => { builder.no_history(x); },
_ => bail!(ErrorKind::BadSchemaAssertion(format!("Expected [... :db/noHistory true|false] but got [... :db/noHistory {:?}]", value)))
_ => bail!(DbError::BadSchemaAssertion(format!("Expected [... :db/noHistory true|false] but got [... :db/noHistory {:?}]", value)))
}
},
_ => {
bail!(ErrorKind::BadSchemaAssertion(format!("Do not recognize attribute {} for entid {}", attr, entid)))
bail!(DbError::BadSchemaAssertion(format!("Do not recognize attribute {} for entid {}", attr, entid)))
}
}
};
@ -243,8 +244,7 @@ pub fn update_attribute_map_from_entid_triples<A, R>(attribute_map: &mut Attribu
match attribute_map.entry(entid) {
Entry::Vacant(entry) => {
// Validate once…
builder.validate_install_attribute()
.chain_err(|| ErrorKind::BadSchemaAssertion(format!("Schema alteration for new attribute with entid {} is not valid", entid)))?;
builder.validate_install_attribute().context(DbError::BadSchemaAssertion(format!("Schema alteration for new attribute with entid {} is not valid", entid)))?;
// … and twice, now we have the Attribute.
let a = builder.build();
@ -254,8 +254,7 @@ pub fn update_attribute_map_from_entid_triples<A, R>(attribute_map: &mut Attribu
},
Entry::Occupied(mut entry) => {
builder.validate_alter_attribute()
.chain_err(|| ErrorKind::BadSchemaAssertion(format!("Schema alteration for existing attribute with entid {} is not valid", entid)))?;
builder.validate_alter_attribute().context(DbError::BadSchemaAssertion(format!("Schema alteration for existing attribute with entid {} is not valid", entid)))?;
let mutations = builder.mutate(entry.get_mut());
attributes_altered.insert(entid, mutations);
},

View file

@ -12,7 +12,10 @@
use db::TypedSQLValue;
use edn;
use errors::{ErrorKind, Result};
use errors::{
DbError,
Result,
};
use edn::symbols;
use mentat_core::{
attribute,
@ -39,19 +42,19 @@ pub trait AttributeValidation {
impl AttributeValidation for Attribute {
fn validate<F>(&self, ident: F) -> Result<()> where F: Fn() -> String {
if self.unique == Some(attribute::Unique::Value) && !self.index {
bail!(ErrorKind::BadSchemaAssertion(format!(":db/unique :db/unique_value without :db/index true for entid: {}", ident())))
bail!(DbError::BadSchemaAssertion(format!(":db/unique :db/unique_value without :db/index true for entid: {}", ident())))
}
if self.unique == Some(attribute::Unique::Identity) && !self.index {
bail!(ErrorKind::BadSchemaAssertion(format!(":db/unique :db/unique_identity without :db/index true for entid: {}", ident())))
bail!(DbError::BadSchemaAssertion(format!(":db/unique :db/unique_identity without :db/index true for entid: {}", ident())))
}
if self.fulltext && self.value_type != ValueType::String {
bail!(ErrorKind::BadSchemaAssertion(format!(":db/fulltext true without :db/valueType :db.type/string for entid: {}", ident())))
bail!(DbError::BadSchemaAssertion(format!(":db/fulltext true without :db/valueType :db.type/string for entid: {}", ident())))
}
if self.fulltext && !self.index {
bail!(ErrorKind::BadSchemaAssertion(format!(":db/fulltext true without :db/index true for entid: {}", ident())))
bail!(DbError::BadSchemaAssertion(format!(":db/fulltext true without :db/index true for entid: {}", ident())))
}
if self.component && self.value_type != ValueType::Ref {
bail!(ErrorKind::BadSchemaAssertion(format!(":db/isComponent true without :db/valueType :db.type/ref for entid: {}", ident())))
bail!(DbError::BadSchemaAssertion(format!(":db/isComponent true without :db/valueType :db.type/ref for entid: {}", ident())))
}
// TODO: consider warning if we have :db/index true for :db/valueType :db.type/string,
// since this may be inefficient. More generally, we should try to drive complex
@ -150,17 +153,17 @@ impl AttributeBuilder {
pub fn validate_install_attribute(&self) -> Result<()> {
if self.value_type.is_none() {
bail!(ErrorKind::BadSchemaAssertion("Schema attribute for new attribute does not set :db/valueType".into()));
bail!(DbError::BadSchemaAssertion("Schema attribute for new attribute does not set :db/valueType".into()));
}
Ok(())
}
pub fn validate_alter_attribute(&self) -> Result<()> {
if self.value_type.is_some() {
bail!(ErrorKind::BadSchemaAssertion("Schema alteration must not set :db/valueType".into()));
bail!(DbError::BadSchemaAssertion("Schema alteration must not set :db/valueType".into()));
}
if self.fulltext.is_some() {
bail!(ErrorKind::BadSchemaAssertion("Schema alteration must not set :db/fulltext".into()));
bail!(DbError::BadSchemaAssertion("Schema alteration must not set :db/fulltext".into()));
}
Ok(())
}
@ -247,15 +250,15 @@ pub trait SchemaBuilding {
impl SchemaBuilding for Schema {
fn require_ident(&self, entid: Entid) -> Result<&symbols::Keyword> {
self.get_ident(entid).ok_or(ErrorKind::UnrecognizedEntid(entid).into())
self.get_ident(entid).ok_or(DbError::UnrecognizedEntid(entid).into())
}
fn require_entid(&self, ident: &symbols::Keyword) -> Result<KnownEntid> {
self.get_entid(&ident).ok_or(ErrorKind::UnrecognizedIdent(ident.to_string()).into())
self.get_entid(&ident).ok_or(DbError::UnrecognizedIdent(ident.to_string()).into())
}
fn require_attribute_for_entid(&self, entid: Entid) -> Result<&Attribute> {
self.attribute_for_entid(entid).ok_or(ErrorKind::UnrecognizedEntid(entid).into())
self.attribute_for_entid(entid).ok_or(DbError::UnrecognizedEntid(entid).into())
}
/// Create a valid `Schema` from the constituent maps.
@ -271,8 +274,8 @@ impl SchemaBuilding for Schema {
where U: IntoIterator<Item=(symbols::Keyword, symbols::Keyword, TypedValue)>{
let entid_assertions: Result<Vec<(Entid, Entid, TypedValue)>> = assertions.into_iter().map(|(symbolic_ident, symbolic_attr, value)| {
let ident: i64 = *ident_map.get(&symbolic_ident).ok_or(ErrorKind::UnrecognizedIdent(symbolic_ident.to_string()))?;
let attr: i64 = *ident_map.get(&symbolic_attr).ok_or(ErrorKind::UnrecognizedIdent(symbolic_attr.to_string()))?;
let ident: i64 = *ident_map.get(&symbolic_ident).ok_or(DbError::UnrecognizedIdent(symbolic_ident.to_string()))?;
let attr: i64 = *ident_map.get(&symbolic_attr).ok_or(DbError::UnrecognizedIdent(symbolic_attr.to_string()))?;
Ok((ident, attr, value))
}).collect();
@ -305,7 +308,7 @@ impl SchemaTypeChecking for Schema {
// wrapper function.
match TypedValue::from_edn_value(&value.clone().without_spans()) {
// We don't recognize this EDN at all. Get out!
None => bail!(ErrorKind::BadValuePair(format!("{}", value), value_type)),
None => bail!(DbError::BadValuePair(format!("{}", value), value_type)),
Some(typed_value) => match (value_type, typed_value) {
// Most types don't coerce at all.
(ValueType::Boolean, tv @ TypedValue::Boolean(_)) => Ok(tv),
@ -331,7 +334,7 @@ impl SchemaTypeChecking for Schema {
(vt @ ValueType::Instant, _) |
(vt @ ValueType::Keyword, _) |
(vt @ ValueType::Ref, _)
=> bail!(ErrorKind::BadValuePair(format!("{}", value), vt)),
=> bail!(DbError::BadValuePair(format!("{}", value), vt)),
}
}
}
@ -343,7 +346,6 @@ impl SchemaTypeChecking for Schema {
mod test {
use super::*;
use self::edn::Keyword;
use errors::Error;
fn add_attribute(schema: &mut Schema,
ident: Keyword,
@ -435,8 +437,8 @@ mod test {
let err = validate_attribute_map(&schema.entid_map, &schema.attribute_map).err();
assert!(err.is_some());
match err.unwrap() {
Error(ErrorKind::BadSchemaAssertion(message), _) => { assert_eq!(message, ":db/unique :db/unique_value without :db/index true for entid: :foo/bar"); },
match err.unwrap().downcast() {
Ok(DbError::BadSchemaAssertion(message)) => { assert_eq!(message, ":db/unique :db/unique_value without :db/index true for entid: :foo/bar"); },
x => panic!("expected Bad Schema Assertion error, got {:?}", x),
}
}
@ -458,8 +460,8 @@ mod test {
let err = validate_attribute_map(&schema.entid_map, &schema.attribute_map).err();
assert!(err.is_some());
match err.unwrap() {
Error(ErrorKind::BadSchemaAssertion(message), _) => { assert_eq!(message, ":db/unique :db/unique_identity without :db/index true for entid: :foo/bar"); },
match err.unwrap().downcast() {
Ok(DbError::BadSchemaAssertion(message)) => { assert_eq!(message, ":db/unique :db/unique_identity without :db/index true for entid: :foo/bar"); },
x => panic!("expected Bad Schema Assertion error, got {:?}", x),
}
}
@ -481,8 +483,8 @@ mod test {
let err = validate_attribute_map(&schema.entid_map, &schema.attribute_map).err();
assert!(err.is_some());
match err.unwrap() {
Error(ErrorKind::BadSchemaAssertion(message), _) => { assert_eq!(message, ":db/isComponent true without :db/valueType :db.type/ref for entid: :foo/bar"); },
match err.unwrap().downcast() {
Ok(DbError::BadSchemaAssertion(message)) => { assert_eq!(message, ":db/isComponent true without :db/valueType :db.type/ref for entid: :foo/bar"); },
x => panic!("expected Bad Schema Assertion error, got {:?}", x),
}
}
@ -504,8 +506,8 @@ mod test {
let err = validate_attribute_map(&schema.entid_map, &schema.attribute_map).err();
assert!(err.is_some());
match err.unwrap() {
Error(ErrorKind::BadSchemaAssertion(message), _) => { assert_eq!(message, ":db/fulltext true without :db/index true for entid: :foo/bar"); },
match err.unwrap().downcast() {
Ok(DbError::BadSchemaAssertion(message)) => { assert_eq!(message, ":db/fulltext true without :db/index true for entid: :foo/bar"); },
x => panic!("expected Bad Schema Assertion error, got {:?}", x),
}
}
@ -526,8 +528,8 @@ mod test {
let err = validate_attribute_map(&schema.entid_map, &schema.attribute_map).err();
assert!(err.is_some());
match err.unwrap() {
Error(ErrorKind::BadSchemaAssertion(message), _) => { assert_eq!(message, ":db/fulltext true without :db/valueType :db.type/string for entid: :foo/bar"); },
match err.unwrap().downcast() {
Ok(DbError::BadSchemaAssertion(message)) => { assert_eq!(message, ":db/fulltext true without :db/valueType :db.type/string for entid: :foo/bar"); },
x => panic!("expected Bad Schema Assertion error, got {:?}", x),
}
}

View file

@ -71,7 +71,7 @@ use edn::{
use entids;
use errors;
use errors::{
ErrorKind,
DbError,
Result,
};
use internal_types::{
@ -179,7 +179,7 @@ pub fn remove_db_id<V: TransactableValue>(map: &mut entmod::MapNotation<V>) -> R
entmod::ValuePlace::Atom(v) => Some(v.into_entity_place()?),
entmod::ValuePlace::Vector(_) |
entmod::ValuePlace::MapNotation(_) => {
bail!(ErrorKind::InputError(errors::InputError::BadDbId))
bail!(DbError::InputError(errors::InputError::BadDbId))
},
}
} else {
@ -244,7 +244,7 @@ impl<'conn, 'a, W> Tx<'conn, 'a, W> where W: TransactWatcher {
}
if !conflicting_upserts.is_empty() {
bail!(ErrorKind::SchemaConstraintViolation(errors::SchemaConstraintViolation::ConflictingUpserts { conflicting_upserts }));
bail!(DbError::SchemaConstraintViolation(errors::SchemaConstraintViolation::ConflictingUpserts { conflicting_upserts }));
}
Ok(tempids)
@ -281,7 +281,7 @@ impl<'conn, 'a, W> Tx<'conn, 'a, W> where W: TransactWatcher {
if self.partition_map.contains_entid(e) {
Ok(KnownEntid(e))
} else {
bail!(ErrorKind::UnrecognizedEntid(e))
bail!(DbError::UnrecognizedEntid(e))
}
}
@ -298,7 +298,7 @@ impl<'conn, 'a, W> Tx<'conn, 'a, W> where W: TransactWatcher {
let lr_typed_value: TypedValue = lookup_ref.v.clone().into_typed_value(&self.schema, lr_attribute.value_type)?;
if lr_attribute.unique.is_none() {
bail!(ErrorKind::NotYetImplemented(format!("Cannot resolve (lookup-ref {} {:?}) with attribute that is not :db/unique", lr_a, lr_typed_value)))
bail!(DbError::NotYetImplemented(format!("Cannot resolve (lookup-ref {} {:?}) with attribute that is not :db/unique", lr_a, lr_typed_value)))
}
Ok(self.lookup_refs.intern((lr_a, lr_typed_value)))
@ -336,7 +336,7 @@ impl<'conn, 'a, W> Tx<'conn, 'a, W> where W: TransactWatcher {
entmod::EntityPlace::TxFunction(ref tx_function) => {
match tx_function.op.0.as_str() {
"transaction-tx" => Ok(Either::Left(self.tx_id)),
unknown @ _ => bail!(ErrorKind::NotYetImplemented(format!("Unknown transaction function {}", unknown))),
unknown @ _ => bail!(DbError::NotYetImplemented(format!("Unknown transaction function {}", unknown))),
}
},
}
@ -357,13 +357,13 @@ impl<'conn, 'a, W> Tx<'conn, 'a, W> where W: TransactWatcher {
fn entity_v_into_term_e<W: TransactableValue>(&mut self, x: entmod::ValuePlace<W>, backward_a: &entmod::Entid) -> Result<KnownEntidOr<LookupRefOrTempId>> {
match backward_a.unreversed() {
None => {
bail!(ErrorKind::NotYetImplemented(format!("Cannot explode map notation value in :attr/_reversed notation for forward attribute")));
bail!(DbError::NotYetImplemented(format!("Cannot explode map notation value in :attr/_reversed notation for forward attribute")));
},
Some(forward_a) => {
let forward_a = self.entity_a_into_term_a(forward_a)?;
let forward_attribute = self.schema.require_attribute_for_entid(forward_a)?;
if forward_attribute.value_type != ValueType::Ref {
bail!(ErrorKind::NotYetImplemented(format!("Cannot use :attr/_reversed notation for attribute {} that is not :db/valueType :db.type/ref", forward_a)))
bail!(DbError::NotYetImplemented(format!("Cannot use :attr/_reversed notation for attribute {} that is not :db/valueType :db.type/ref", forward_a)))
}
match x {
@ -378,7 +378,7 @@ impl<'conn, 'a, W> Tx<'conn, 'a, W> where W: TransactWatcher {
Ok(Either::Left(KnownEntid(entid)))
} else {
// The given value is expected to be :db.type/ref, so this shouldn't happen.
bail!(ErrorKind::NotYetImplemented(format!("Cannot use :attr/_reversed notation for attribute {} with value that is not :db.valueType :db.type/ref", forward_a)))
bail!(DbError::NotYetImplemented(format!("Cannot use :attr/_reversed notation for attribute {} with value that is not :db.valueType :db.type/ref", forward_a)))
}
}
}
@ -396,15 +396,15 @@ impl<'conn, 'a, W> Tx<'conn, 'a, W> where W: TransactWatcher {
entmod::ValuePlace::TxFunction(ref tx_function) => {
match tx_function.op.0.as_str() {
"transaction-tx" => Ok(Either::Left(KnownEntid(self.tx_id.0))),
unknown @ _ => bail!(ErrorKind::NotYetImplemented(format!("Unknown transaction function {}", unknown))),
unknown @ _ => bail!(DbError::NotYetImplemented(format!("Unknown transaction function {}", unknown))),
}
},
entmod::ValuePlace::Vector(_) =>
bail!(ErrorKind::NotYetImplemented(format!("Cannot explode vector value in :attr/_reversed notation for attribute {}", forward_a))),
bail!(DbError::NotYetImplemented(format!("Cannot explode vector value in :attr/_reversed notation for attribute {}", forward_a))),
entmod::ValuePlace::MapNotation(_) =>
bail!(ErrorKind::NotYetImplemented(format!("Cannot explode map notation value in :attr/_reversed notation for attribute {}", forward_a))),
bail!(DbError::NotYetImplemented(format!("Cannot explode map notation value in :attr/_reversed notation for attribute {}", forward_a))),
}
},
}
@ -475,7 +475,7 @@ impl<'conn, 'a, W> Tx<'conn, 'a, W> where W: TransactWatcher {
entmod::ValuePlace::LookupRef(ref lookup_ref) => {
if attribute.value_type != ValueType::Ref {
bail!(ErrorKind::NotYetImplemented(format!("Cannot resolve value lookup ref for attribute {} that is not :db/valueType :db.type/ref", a)))
bail!(DbError::NotYetImplemented(format!("Cannot resolve value lookup ref for attribute {} that is not :db/valueType :db.type/ref", a)))
}
Either::Right(LookupRefOrTempId::LookupRef(in_process.intern_lookup_ref(lookup_ref)?))
@ -484,7 +484,7 @@ impl<'conn, 'a, W> Tx<'conn, 'a, W> where W: TransactWatcher {
entmod::ValuePlace::TxFunction(ref tx_function) => {
let typed_value = match tx_function.op.0.as_str() {
"transaction-tx" => TypedValue::Ref(self.tx_id),
unknown @ _ => bail!(ErrorKind::NotYetImplemented(format!("Unknown transaction function {}", unknown))),
unknown @ _ => bail!(DbError::NotYetImplemented(format!("Unknown transaction function {}", unknown))),
};
// Here we do schema-aware typechecking: we assert that the computed
@ -494,7 +494,7 @@ impl<'conn, 'a, W> Tx<'conn, 'a, W> where W: TransactWatcher {
// value can be used where a double is expected. See also
// `SchemaTypeChecking.to_typed_value(...)`.
if attribute.value_type != typed_value.value_type() {
bail!(ErrorKind::NotYetImplemented(format!("Transaction function {} produced value of type {} but expected type {}",
bail!(DbError::NotYetImplemented(format!("Transaction function {} produced value of type {} but expected type {}",
tx_function.op.0.as_str(), typed_value.value_type(), attribute.value_type)));
}
@ -503,7 +503,7 @@ impl<'conn, 'a, W> Tx<'conn, 'a, W> where W: TransactWatcher {
entmod::ValuePlace::Vector(vs) => {
if !attribute.multival {
bail!(ErrorKind::NotYetImplemented(format!("Cannot explode vector value for attribute {} that is not :db.cardinality :db.cardinality/many", a)));
bail!(DbError::NotYetImplemented(format!("Cannot explode vector value for attribute {} that is not :db.cardinality :db.cardinality/many", a)));
}
for vv in vs {
@ -523,11 +523,11 @@ impl<'conn, 'a, W> Tx<'conn, 'a, W> where W: TransactWatcher {
// AddOrRetract, which proliferates types and code, or only handling
// nested maps rather than map values, like Datomic does.
if op != OpType::Add {
bail!(ErrorKind::NotYetImplemented(format!("Cannot explode nested map value in :db/retract for attribute {}", a)));
bail!(DbError::NotYetImplemented(format!("Cannot explode nested map value in :db/retract for attribute {}", a)));
}
if attribute.value_type != ValueType::Ref {
bail!(ErrorKind::NotYetImplemented(format!("Cannot explode nested map value for attribute {} that is not :db/valueType :db.type/ref", a)))
bail!(DbError::NotYetImplemented(format!("Cannot explode nested map value for attribute {} that is not :db/valueType :db.type/ref", a)))
}
// :db/id is optional; if it's not given, we generate a special internal tempid
@ -580,7 +580,7 @@ impl<'conn, 'a, W> Tx<'conn, 'a, W> where W: TransactWatcher {
}
if dangling {
bail!(ErrorKind::NotYetImplemented(format!("Cannot explode nested map value that would lead to dangling entity for attribute {}", a)));
bail!(DbError::NotYetImplemented(format!("Cannot explode nested map value that would lead to dangling entity for attribute {}", a)));
}
in_process.entity_e_into_term_v(db_id)?
@ -668,7 +668,7 @@ impl<'conn, 'a, W> Tx<'conn, 'a, W> where W: TransactWatcher {
}
if !conflicting_upserts.is_empty() {
bail!(ErrorKind::SchemaConstraintViolation(errors::SchemaConstraintViolation::ConflictingUpserts { conflicting_upserts }));
bail!(DbError::SchemaConstraintViolation(errors::SchemaConstraintViolation::ConflictingUpserts { conflicting_upserts }));
}
debug!("tempids {:?}", tempids);
@ -742,12 +742,12 @@ impl<'conn, 'a, W> Tx<'conn, 'a, W> where W: TransactWatcher {
let errors = tx_checking::type_disagreements(&aev_trie);
if !errors.is_empty() {
bail!(ErrorKind::SchemaConstraintViolation(errors::SchemaConstraintViolation::TypeDisagreements { conflicting_datoms: errors }));
bail!(DbError::SchemaConstraintViolation(errors::SchemaConstraintViolation::TypeDisagreements { conflicting_datoms: errors }));
}
let errors = tx_checking::cardinality_conflicts(&aev_trie);
if !errors.is_empty() {
bail!(ErrorKind::SchemaConstraintViolation(errors::SchemaConstraintViolation::CardinalityConflicts { conflicts: errors }));
bail!(DbError::SchemaConstraintViolation(errors::SchemaConstraintViolation::CardinalityConflicts { conflicts: errors }));
}
// Pipeline stage 4: final terms (after rewriting) -> DB insertions.

View file

@ -21,8 +21,10 @@ use std::collections::{
use indexmap;
use petgraph::unionfind;
use errors;
use errors::ErrorKind;
use errors::{
DbError,
Result,
};
use types::{
AVPair,
};
@ -100,11 +102,11 @@ pub(crate) struct FinalPopulations {
impl Generation {
/// Split entities into a generation of populations that need to evolve to have their tempids
/// resolved or allocated, and a population of inert entities that do not reference tempids.
pub(crate) fn from<I>(terms: I, schema: &Schema) -> errors::Result<(Generation, Population)> where I: IntoIterator<Item=TermWithTempIds> {
pub(crate) fn from<I>(terms: I, schema: &Schema) -> Result<(Generation, Population)> where I: IntoIterator<Item=TermWithTempIds> {
let mut generation = Generation::default();
let mut inert = vec![];
let is_unique = |a: Entid| -> errors::Result<bool> {
let is_unique = |a: Entid| -> Result<bool> {
let attribute: &Attribute = schema.require_attribute_for_entid(a)?;
Ok(attribute.unique == Some(attribute::Unique::Identity))
};
@ -223,7 +225,7 @@ impl Generation {
}
/// Evolve potential upserts that haven't resolved into allocations.
pub(crate) fn allocate_unresolved_upserts(&mut self) -> errors::Result<()> {
pub(crate) fn allocate_unresolved_upserts(&mut self) -> Result<()> {
let mut upserts_ev = vec![];
::std::mem::swap(&mut self.upserts_ev, &mut upserts_ev);
@ -236,7 +238,7 @@ impl Generation {
///
/// Some of the tempids may be identified, so we also provide a map from tempid to a dense set
/// of contiguous integer labels.
pub(crate) fn temp_ids_in_allocations(&self, schema: &Schema) -> errors::Result<BTreeMap<TempIdHandle, usize>> {
pub(crate) fn temp_ids_in_allocations(&self, schema: &Schema) -> Result<BTreeMap<TempIdHandle, usize>> {
assert!(self.upserts_e.is_empty(), "All upserts should have been upserted, resolved, or moved to the allocated population!");
assert!(self.upserts_ev.is_empty(), "All upserts should have been upserted, resolved, or moved to the allocated population!");
@ -313,7 +315,7 @@ impl Generation {
/// After evolution is complete, use the provided allocated entids to segment `self` into
/// populations, each with no references to tempids.
pub(crate) fn into_final_populations(self, temp_id_map: &TempIdMap) -> errors::Result<FinalPopulations> {
pub(crate) fn into_final_populations(self, temp_id_map: &TempIdMap) -> Result<FinalPopulations> {
assert!(self.upserts_e.is_empty());
assert!(self.upserts_ev.is_empty());
@ -329,21 +331,21 @@ impl Generation {
match (op, temp_id_map.get(&*t1), temp_id_map.get(&*t2)) {
(op, Some(&n1), Some(&n2)) => Term::AddOrRetract(op, n1, a, TypedValue::Ref(n2.0)),
(OpType::Add, _, _) => unreachable!(), // This is a coding error -- every tempid in a :db/add entity should resolve or be allocated.
(OpType::Retract, _, _) => bail!(ErrorKind::NotYetImplemented(format!("[:db/retract ...] entity referenced tempid that did not upsert: one of {}, {}", t1, t2))),
(OpType::Retract, _, _) => bail!(DbError::NotYetImplemented(format!("[:db/retract ...] entity referenced tempid that did not upsert: one of {}, {}", t1, t2))),
}
},
Term::AddOrRetract(op, Right(t), a, Left(v)) => {
match (op, temp_id_map.get(&*t)) {
(op, Some(&n)) => Term::AddOrRetract(op, n, a, v),
(OpType::Add, _) => unreachable!(), // This is a coding error.
(OpType::Retract, _) => bail!(ErrorKind::NotYetImplemented(format!("[:db/retract ...] entity referenced tempid that did not upsert: {}", t))),
(OpType::Retract, _) => bail!(DbError::NotYetImplemented(format!("[:db/retract ...] entity referenced tempid that did not upsert: {}", t))),
}
},
Term::AddOrRetract(op, Left(e), a, Right(t)) => {
match (op, temp_id_map.get(&*t)) {
(op, Some(&n)) => Term::AddOrRetract(op, e, a, TypedValue::Ref(n.0)),
(OpType::Add, _) => unreachable!(), // This is a coding error.
(OpType::Retract, _) => bail!(ErrorKind::NotYetImplemented(format!("[:db/retract ...] entity referenced tempid that did not upsert: {}", t))),
(OpType::Retract, _) => bail!(DbError::NotYetImplemented(format!("[:db/retract ...] entity referenced tempid that did not upsert: {}", t))),
}
},
Term::AddOrRetract(_, Left(_), _, Left(_)) => unreachable!(), // This is a coding error -- these should not be in allocations.

View file

@ -67,9 +67,12 @@
//! propogation. These types have implemented [From](std::convert::From) such that conversion from the Rust type
//! to the C type is as painless as possible.
extern crate core;
extern crate libc;
extern crate mentat;
use core::fmt::Display;
use std::collections::{
BTreeSet,
};
@ -204,7 +207,7 @@ pub struct ExternResult {
pub err: *const c_char,
}
impl<T, E> From<Result<T, E>> for ExternResult where E: std::error::Error {
impl<T, E> From<Result<T, E>> for ExternResult where E: Display {
fn from(result: Result<T, E>) -> Self {
match result {
Ok(value) => {

View file

@ -13,8 +13,7 @@ extern crate edn;
extern crate itertools;
/// A `ValueParseError` is a `combine::primitives::ParseError`-alike that implements the `Debug`,
/// `Display`, and `std::error::Error` traits. In addition, it doesn't capture references, making
/// it possible to store `ValueParseError` instances in local links with the `error-chain` crate.
/// `Display`, and `std::error::Error` traits. In addition, it doesn't capture references.
///
/// This is achieved by wrapping slices of type `&'a [edn::Value]` in an owning type that implements
/// `Display`; rather than introducing a newtype like `DisplayVec`, we re-use `edn::Value::Vector`.

View file

@ -4,7 +4,8 @@ version = "0.0.1"
workspace = ".."
[dependencies]
error-chain = { git = "https://github.com/rnewman/error-chain", branch = "rnewman/sync" }
failure = "0.1.1"
failure_derive = "0.1.1"
[dependencies.mentat_core]
path = "../core"

View file

@ -28,7 +28,7 @@ use clauses::{
};
use errors::{
ErrorKind,
AlgebrizerError,
Result,
};
@ -80,12 +80,12 @@ impl ValueTypes for FnArg {
&FnArg::Constant(NonIntegerConstant::BigInteger(_)) => {
// Not yet implemented.
bail!(ErrorKind::UnsupportedArgument)
bail!(AlgebrizerError::UnsupportedArgument)
},
// These don't make sense here. TODO: split FnArg into scalar and non-scalar…
&FnArg::Vector(_) |
&FnArg::SrcVar(_) => bail!(ErrorKind::UnsupportedArgument),
&FnArg::SrcVar(_) => bail!(AlgebrizerError::UnsupportedArgument),
// These are all straightforward.
&FnArg::Constant(NonIntegerConstant::Boolean(_)) => ValueTypeSet::of_one(ValueType::Boolean),
@ -196,7 +196,7 @@ impl ConjoiningClauses {
FnArg::Variable(in_var) => {
// TODO: technically you could ground an existing variable inside the query….
if !self.input_variables.contains(&in_var) {
bail!(ErrorKind::UnboundVariable((*in_var.0).clone()));
bail!(AlgebrizerError::UnboundVariable((*in_var.0).clone()))
}
match self.bound_value(&in_var) {
// The type is already known if it's a bound variable….
@ -205,7 +205,7 @@ impl ConjoiningClauses {
// The variable is present in `:in`, but it hasn't yet been provided.
// This is a restriction we will eventually relax: we don't yet have a way
// to collect variables as part of a computed table or substitution.
bail!(ErrorKind::UnboundVariable((*in_var.0).clone()))
bail!(AlgebrizerError::UnboundVariable((*in_var.0).clone()))
},
}
},
@ -215,7 +215,7 @@ impl ConjoiningClauses {
// These don't make sense here.
FnArg::Vector(_) |
FnArg::SrcVar(_) => bail!(ErrorKind::InvalidGroundConstant),
FnArg::SrcVar(_) => bail!(AlgebrizerError::InvalidGroundConstant),
// These are all straightforward.
FnArg::Constant(NonIntegerConstant::Boolean(x)) => {

View file

@ -30,8 +30,9 @@ use clauses::{
};
use errors::{
AlgebrizerError,
BindingError,
ErrorKind,
InvalidBinding,
Result,
};
@ -53,17 +54,17 @@ impl ConjoiningClauses {
#[allow(unused_variables)]
pub(crate) fn apply_fulltext(&mut self, known: Known, where_fn: WhereFn) -> Result<()> {
if where_fn.args.len() != 3 {
bail!(ErrorKind::InvalidNumberOfArguments(where_fn.operator.clone(), where_fn.args.len(), 3));
bail!(AlgebrizerError::InvalidNumberOfArguments(where_fn.operator.clone(), where_fn.args.len(), 3));
}
if where_fn.binding.is_empty() {
// The binding must introduce at least one bound variable.
bail!(ErrorKind::InvalidBinding(where_fn.operator.clone(), BindingError::NoBoundVariable));
bail!(InvalidBinding::new(where_fn.operator.clone(), BindingError::NoBoundVariable));
}
if !where_fn.binding.is_valid() {
// The binding must not duplicate bound variables.
bail!(ErrorKind::InvalidBinding(where_fn.operator.clone(), BindingError::RepeatedBoundVariable));
bail!(InvalidBinding::new(where_fn.operator.clone(), BindingError::RepeatedBoundVariable));
}
// We should have exactly four bindings. Destructure them now.
@ -71,17 +72,18 @@ impl ConjoiningClauses {
Binding::BindRel(bindings) => {
let bindings_count = bindings.len();
if bindings_count < 1 || bindings_count > 4 {
bail!(ErrorKind::InvalidBinding(where_fn.operator.clone(),
bail!(InvalidBinding::new(where_fn.operator.clone(),
BindingError::InvalidNumberOfBindings {
number: bindings.len(),
expected: 4,
}));
})
);
}
bindings
},
Binding::BindScalar(_) |
Binding::BindTuple(_) |
Binding::BindColl(_) => bail!(ErrorKind::InvalidBinding(where_fn.operator.clone(), BindingError::ExpectedBindRel)),
Binding::BindColl(_) => bail!(InvalidBinding::new(where_fn.operator.clone(), BindingError::ExpectedBindRel)),
};
let mut bindings = bindings.into_iter();
let b_entity = bindings.next().unwrap();
@ -94,7 +96,7 @@ impl ConjoiningClauses {
// TODO: process source variables.
match args.next().unwrap() {
FnArg::SrcVar(SrcVar::DefaultSrc) => {},
_ => bail!(ErrorKind::InvalidArgument(where_fn.operator.clone(), "source variable", 0)),
_ => bail!(AlgebrizerError::InvalidArgument(where_fn.operator.clone(), "source variable", 0)),
}
let schema = known.schema;
@ -114,10 +116,10 @@ impl ConjoiningClauses {
match self.bound_value(&v) {
Some(TypedValue::Ref(entid)) => Some(entid),
Some(tv) => {
bail!(ErrorKind::InputTypeDisagreement(v.name().clone(), ValueType::Ref, tv.value_type()));
bail!(AlgebrizerError::InputTypeDisagreement(v.name().clone(), ValueType::Ref, tv.value_type()))
},
None => {
bail!(ErrorKind::UnboundVariable((*v.0).clone()));
bail!(AlgebrizerError::UnboundVariable((*v.0).clone()))
}
}
},
@ -127,10 +129,10 @@ impl ConjoiningClauses {
// An unknown ident, or an entity that isn't present in the store, or isn't a fulltext
// attribute, is likely enough to be a coding error that we choose to bail instead of
// marking the pattern as known-empty.
let a = a.ok_or(ErrorKind::InvalidArgument(where_fn.operator.clone(), "attribute", 1))?;
let a = a.ok_or(AlgebrizerError::InvalidArgument(where_fn.operator.clone(), "attribute", 1))?;
let attribute = schema.attribute_for_entid(a)
.cloned()
.ok_or(ErrorKind::InvalidArgument(where_fn.operator.clone(),
.ok_or(AlgebrizerError::InvalidArgument(where_fn.operator.clone(),
"attribute", 1))?;
if !attribute.fulltext {
@ -169,18 +171,18 @@ impl ConjoiningClauses {
FnArg::Variable(in_var) => {
match self.bound_value(&in_var) {
Some(t @ TypedValue::String(_)) => Either::Left(t),
Some(_) => bail!(ErrorKind::InvalidArgument(where_fn.operator.clone(), "string", 2)),
Some(_) => bail!(AlgebrizerError::InvalidArgument(where_fn.operator.clone(), "string", 2)),
None => {
// Regardless of whether we'll be providing a string later, or the value
// comes from a column, it must be a string.
if self.known_type(&in_var) != Some(ValueType::String) {
bail!(ErrorKind::InvalidArgument(where_fn.operator.clone(), "string", 2));
bail!(AlgebrizerError::InvalidArgument(where_fn.operator.clone(), "string", 2))
}
if self.input_variables.contains(&in_var) {
// Sorry, we haven't implemented late binding.
// TODO: implement this.
bail!(ErrorKind::UnboundVariable((*in_var.0).clone()));
bail!(AlgebrizerError::UnboundVariable((*in_var.0).clone()))
} else {
// It must be bound earlier in the query. We already established that
// it must be a string column.
@ -189,13 +191,13 @@ impl ConjoiningClauses {
.and_then(|bindings| bindings.get(0).cloned()) {
Either::Right(binding)
} else {
bail!(ErrorKind::UnboundVariable((*in_var.0).clone()));
bail!(AlgebrizerError::UnboundVariable((*in_var.0).clone()))
}
}
},
}
},
_ => bail!(ErrorKind::InvalidArgument(where_fn.operator.clone(), "string", 2)),
_ => bail!(AlgebrizerError::InvalidArgument(where_fn.operator.clone(), "string", 2)),
};
let qv = match search {
@ -244,7 +246,7 @@ impl ConjoiningClauses {
// We do not allow the score to be bound.
if self.value_bindings.contains_key(var) || self.input_variables.contains(var) {
bail!(ErrorKind::InvalidBinding(var.name(), BindingError::UnexpectedBinding));
bail!(InvalidBinding::new(var.name(), BindingError::UnexpectedBinding));
}
// We bind the value ourselves. This handily takes care of substituting into existing uses.

View file

@ -31,8 +31,9 @@ use clauses::{
use clauses::convert::ValueConversion;
use errors::{
AlgebrizerError,
BindingError,
ErrorKind,
InvalidBinding,
Result,
};
@ -117,19 +118,19 @@ impl ConjoiningClauses {
pub(crate) fn apply_ground(&mut self, known: Known, where_fn: WhereFn) -> Result<()> {
if where_fn.args.len() != 1 {
bail!(ErrorKind::InvalidNumberOfArguments(where_fn.operator.clone(), where_fn.args.len(), 1));
bail!(AlgebrizerError::InvalidNumberOfArguments(where_fn.operator.clone(), where_fn.args.len(), 1));
}
let mut args = where_fn.args.into_iter();
if where_fn.binding.is_empty() {
// The binding must introduce at least one bound variable.
bail!(ErrorKind::InvalidBinding(where_fn.operator.clone(), BindingError::NoBoundVariable));
bail!(InvalidBinding::new(where_fn.operator.clone(), BindingError::NoBoundVariable));
}
if !where_fn.binding.is_valid() {
// The binding must not duplicate bound variables.
bail!(ErrorKind::InvalidBinding(where_fn.operator.clone(), BindingError::RepeatedBoundVariable));
bail!(InvalidBinding::new(where_fn.operator.clone(), BindingError::RepeatedBoundVariable));
}
let schema = known.schema;
@ -145,7 +146,7 @@ impl ConjoiningClauses {
// Just the same, but we bind more than one column at a time.
if children.len() != places.len() {
// Number of arguments don't match the number of values. TODO: better error message.
bail!(ErrorKind::GroundBindingsMismatch);
bail!(AlgebrizerError::GroundBindingsMismatch)
}
for (place, arg) in places.into_iter().zip(children.into_iter()) {
self.apply_ground_place(schema, place, arg)? // TODO: short-circuit on impossible.
@ -159,7 +160,7 @@ impl ConjoiningClauses {
// are all in a single structure. That makes it substantially simpler!
(Binding::BindColl(var), FnArg::Vector(children)) => {
if children.is_empty() {
bail!(ErrorKind::InvalidGroundConstant);
bail!(AlgebrizerError::InvalidGroundConstant)
}
// Turn a collection of arguments into a Vec of `TypedValue`s of the same type.
@ -177,7 +178,7 @@ impl ConjoiningClauses {
if accumulated_types.insert(tv.value_type()) &&
!accumulated_types.is_unit() {
// Values not all of the same type.
Some(Err(ErrorKind::InvalidGroundConstant.into()))
Some(Err(AlgebrizerError::InvalidGroundConstant.into()))
} else {
Some(Ok(tv))
}
@ -208,7 +209,7 @@ impl ConjoiningClauses {
(Binding::BindRel(places), FnArg::Vector(rows)) => {
if rows.is_empty() {
bail!(ErrorKind::InvalidGroundConstant);
bail!(AlgebrizerError::InvalidGroundConstant)
}
// Grab the known types to which these args must conform, and track
@ -229,7 +230,7 @@ impl ConjoiningClauses {
if expected_width == 0 {
// They can't all be placeholders.
bail!(ErrorKind::InvalidGroundConstant);
bail!(AlgebrizerError::InvalidGroundConstant)
}
// Accumulate values into `matrix` and types into `a_t_f_c`.
@ -245,7 +246,7 @@ impl ConjoiningClauses {
FnArg::Vector(cols) => {
// Make sure that every row is the same length.
if cols.len() != full_width {
bail!(ErrorKind::InvalidGroundConstant);
bail!(AlgebrizerError::InvalidGroundConstant)
}
// TODO: don't accumulate twice.
@ -280,13 +281,13 @@ impl ConjoiningClauses {
let inserted = acc.insert(val.value_type());
if inserted && !acc.is_unit() {
// Heterogeneous types.
bail!(ErrorKind::InvalidGroundConstant);
bail!(AlgebrizerError::InvalidGroundConstant)
}
matrix.push(val);
}
},
_ => bail!(ErrorKind::InvalidGroundConstant),
_ => bail!(AlgebrizerError::InvalidGroundConstant),
}
}
@ -312,7 +313,7 @@ impl ConjoiningClauses {
self.collect_named_bindings(schema, names, types, matrix);
Ok(())
},
(_, _) => bail!(ErrorKind::InvalidGroundConstant),
(_, _) => bail!(AlgebrizerError::InvalidGroundConstant),
}
}
}

View file

@ -20,7 +20,7 @@ use mentat_query::{
};
use errors::{
ErrorKind,
AlgebrizerError,
Result,
};
@ -72,7 +72,7 @@ impl QueryInputs {
let old = types.insert(var.clone(), t);
if let Some(old) = old {
if old != t {
bail!(ErrorKind::InputTypeDisagreement(var.name(), old, t));
bail!(AlgebrizerError::InputTypeDisagreement(var.name(), old, t));
}
}
}

View file

@ -53,8 +53,7 @@ use mentat_query::{
};
use errors::{
Error,
ErrorKind,
AlgebrizerError,
Result,
};
@ -1014,7 +1013,7 @@ impl ConjoiningClauses {
let qa = self.extracted_types
.get(&var)
.ok_or_else(|| Error::from_kind(ErrorKind::UnboundVariable(var.name())))?;
.ok_or_else(|| AlgebrizerError::UnboundVariable(var.name()))?;
self.wheres.add_intersection(ColumnConstraint::HasTypes {
value: qa.0.clone(),
value_types: types,

View file

@ -17,7 +17,7 @@ use mentat_query::{
use clauses::ConjoiningClauses;
use errors::{
ErrorKind,
AlgebrizerError,
Result,
};
@ -45,7 +45,7 @@ impl ConjoiningClauses {
let col = self.column_bindings.get(&v).unwrap()[0].clone();
template.column_bindings.insert(v.clone(), vec![col]);
} else {
bail!(ErrorKind::UnboundVariable(v.name()));
bail!(AlgebrizerError::UnboundVariable(v.name()));
}
}
@ -111,8 +111,7 @@ mod testing {
};
use errors::{
Error,
ErrorKind,
AlgebrizerError,
};
use types::{
@ -553,10 +552,9 @@ mod testing {
:in ?y
:where (not [?x :foo/knows ?y])]"#;
let parsed = parse_find_string(query).expect("parse failed");
let err = algebrize(known, parsed).err();
assert!(err.is_some());
match err.unwrap() {
Error(ErrorKind::UnboundVariable(var), _) => { assert_eq!(var, PlainSymbol("?x".to_string())); },
let err = algebrize(known, parsed).expect_err("algebrization should have failed");
match err.downcast().expect("expected AlgebrizerError") {
AlgebrizerError::UnboundVariable(var) => { assert_eq!(var, PlainSymbol("?x".to_string())); },
x => panic!("expected Unbound Variable error, got {:?}", x),
}
}

View file

@ -26,8 +26,8 @@ use clauses::ConjoiningClauses;
use clauses::convert::ValueTypes;
use errors::{
AlgebrizerError,
Result,
ErrorKind,
};
use types::{
@ -53,7 +53,7 @@ impl ConjoiningClauses {
if let Some(op) = Inequality::from_datalog_operator(predicate.operator.0.as_str()) {
self.apply_inequality(known, op, predicate)
} else {
bail!(ErrorKind::UnknownFunction(predicate.operator.clone()))
bail!(AlgebrizerError::UnknownFunction(predicate.operator.clone()))
}
}
@ -69,7 +69,7 @@ impl ConjoiningClauses {
pub(crate) fn apply_type_anno(&mut self, anno: &TypeAnnotation) -> Result<()> {
match ValueType::from_keyword(&anno.value_type) {
Some(value_type) => self.add_type_requirement(anno.variable.clone(), ValueTypeSet::of_one(value_type)),
None => bail!(ErrorKind::InvalidArgumentType(PlainSymbol::plain("type"), ValueTypeSet::any(), 2)),
None => bail!(AlgebrizerError::InvalidArgumentType(PlainSymbol::plain("type"), ValueTypeSet::any(), 2)),
}
Ok(())
}
@ -80,7 +80,7 @@ impl ConjoiningClauses {
/// - Accumulates an `Inequality` constraint into the `wheres` list.
pub(crate) fn apply_inequality(&mut self, known: Known, comparison: Inequality, predicate: Predicate) -> Result<()> {
if predicate.args.len() != 2 {
bail!(ErrorKind::InvalidNumberOfArguments(predicate.operator.clone(), predicate.args.len(), 2));
bail!(AlgebrizerError::InvalidNumberOfArguments(predicate.operator.clone(), predicate.args.len(), 2));
}
// Go from arguments -- parser output -- to columns or values.
@ -97,13 +97,13 @@ impl ConjoiningClauses {
let mut left_types = self.potential_types(known.schema, &left)?
.intersection(&supported_types);
if left_types.is_empty() {
bail!(ErrorKind::InvalidArgumentType(predicate.operator.clone(), supported_types, 0));
bail!(AlgebrizerError::InvalidArgumentType(predicate.operator.clone(), supported_types, 0));
}
let mut right_types = self.potential_types(known.schema, &right)?
.intersection(&supported_types);
if right_types.is_empty() {
bail!(ErrorKind::InvalidArgumentType(predicate.operator.clone(), supported_types, 1));
bail!(AlgebrizerError::InvalidArgumentType(predicate.operator.clone(), supported_types, 1));
}
// We would like to allow longs to compare to doubles.
@ -150,7 +150,7 @@ impl ConjoiningClauses {
left_v = self.resolve_ref_argument(known.schema, &predicate.operator, 0, left)?;
right_v = self.resolve_ref_argument(known.schema, &predicate.operator, 1, right)?;
} else {
bail!(ErrorKind::InvalidArgumentType(predicate.operator.clone(), supported_types, 0));
bail!(AlgebrizerError::InvalidArgumentType(predicate.operator.clone(), supported_types, 0));
}
// These arguments must be variables or instant/numeric constants.

View file

@ -24,9 +24,8 @@ use mentat_query::{
use clauses::ConjoiningClauses;
use errors::{
AlgebrizerError,
Result,
Error,
ErrorKind,
};
use types::{
@ -50,14 +49,14 @@ impl ConjoiningClauses {
if v.value_type().is_numeric() {
Ok(QueryValue::TypedValue(v))
} else {
bail!(ErrorKind::InputTypeDisagreement(var.name().clone(), ValueType::Long, v.value_type()));
bail!(AlgebrizerError::InputTypeDisagreement(var.name().clone(), ValueType::Long, v.value_type()))
}
} else {
self.constrain_var_to_numeric(var.clone());
self.column_bindings
.get(&var)
.and_then(|cols| cols.first().map(|col| QueryValue::Column(col.clone())))
.ok_or_else(|| Error::from_kind(ErrorKind::UnboundVariable(var.name())))
.ok_or_else(|| AlgebrizerError::UnboundVariable(var.name()).into())
}
},
// Can't be an entid.
@ -71,7 +70,7 @@ impl ConjoiningClauses {
Constant(NonIntegerConstant::BigInteger(_)) |
Vector(_) => {
self.mark_known_empty(EmptyBecause::NonNumericArgument);
bail!(ErrorKind::InvalidArgument(function.clone(), "numeric", position));
bail!(AlgebrizerError::InvalidArgument(function.clone(), "numeric", position))
},
Constant(NonIntegerConstant::Float(f)) => Ok(QueryValue::TypedValue(TypedValue::Double(f))),
}
@ -84,13 +83,13 @@ impl ConjoiningClauses {
FnArg::Variable(var) => {
match self.bound_value(&var) {
Some(TypedValue::Instant(v)) => Ok(QueryValue::TypedValue(TypedValue::Instant(v))),
Some(v) => bail!(ErrorKind::InputTypeDisagreement(var.name().clone(), ValueType::Instant, v.value_type())),
Some(v) => bail!(AlgebrizerError::InputTypeDisagreement(var.name().clone(), ValueType::Instant, v.value_type())),
None => {
self.constrain_var_to_type(var.clone(), ValueType::Instant);
self.column_bindings
.get(&var)
.and_then(|cols| cols.first().map(|col| QueryValue::Column(col.clone())))
.ok_or_else(|| Error::from_kind(ErrorKind::UnboundVariable(var.name())))
.ok_or_else(|| AlgebrizerError::UnboundVariable(var.name()).into())
},
}
},
@ -109,7 +108,7 @@ impl ConjoiningClauses {
Constant(NonIntegerConstant::BigInteger(_)) |
Vector(_) => {
self.mark_known_empty(EmptyBecause::NonInstantArgument);
bail!(ErrorKind::InvalidArgumentType(function.clone(), ValueType::Instant.into(), position));
bail!(AlgebrizerError::InvalidArgumentType(function.clone(), ValueType::Instant.into(), position))
},
}
}
@ -128,14 +127,14 @@ impl ConjoiningClauses {
self.column_bindings
.get(&var)
.and_then(|cols| cols.first().map(|col| QueryValue::Column(col.clone())))
.ok_or_else(|| Error::from_kind(ErrorKind::UnboundVariable(var.name())))
.ok_or_else(|| AlgebrizerError::UnboundVariable(var.name()).into())
}
},
EntidOrInteger(i) => Ok(QueryValue::TypedValue(TypedValue::Ref(i))),
IdentOrKeyword(i) => {
schema.get_entid(&i)
.map(|known_entid| QueryValue::Entid(known_entid.into()))
.ok_or_else(|| Error::from_kind(ErrorKind::UnrecognizedIdent(i.to_string())))
.ok_or_else(|| AlgebrizerError::UnrecognizedIdent(i.to_string()).into())
},
Constant(NonIntegerConstant::Boolean(_)) |
Constant(NonIntegerConstant::Float(_)) |
@ -146,7 +145,7 @@ impl ConjoiningClauses {
SrcVar(_) |
Vector(_) => {
self.mark_known_empty(EmptyBecause::NonEntityArgument);
bail!(ErrorKind::InvalidArgumentType(function.clone(), ValueType::Ref.into(), position));
bail!(AlgebrizerError::InvalidArgumentType(function.clone(), ValueType::Ref.into(), position))
},
}
@ -173,7 +172,7 @@ impl ConjoiningClauses {
self.column_bindings
.get(&var)
.and_then(|cols| cols.first().map(|col| QueryValue::Column(col.clone())))
.ok_or_else(|| Error::from_kind(ErrorKind::UnboundVariable(var.name())))
.ok_or_else(|| AlgebrizerError::UnboundVariable(var.name()).into())
},
}
},

View file

@ -25,8 +25,9 @@ use clauses::{
};
use errors::{
AlgebrizerError,
BindingError,
ErrorKind,
InvalidBinding,
Result,
};
@ -60,17 +61,17 @@ impl ConjoiningClauses {
// transactions that impact one of the given attributes.
pub(crate) fn apply_tx_ids(&mut self, known: Known, where_fn: WhereFn) -> Result<()> {
if where_fn.args.len() != 3 {
bail!(ErrorKind::InvalidNumberOfArguments(where_fn.operator.clone(), where_fn.args.len(), 3));
bail!(AlgebrizerError::InvalidNumberOfArguments(where_fn.operator.clone(), where_fn.args.len(), 3));
}
if where_fn.binding.is_empty() {
// The binding must introduce at least one bound variable.
bail!(ErrorKind::InvalidBinding(where_fn.operator.clone(), BindingError::NoBoundVariable));
bail!(InvalidBinding::new(where_fn.operator.clone(), BindingError::NoBoundVariable));
}
if !where_fn.binding.is_valid() {
// The binding must not duplicate bound variables.
bail!(ErrorKind::InvalidBinding(where_fn.operator.clone(), BindingError::RepeatedBoundVariable));
bail!(InvalidBinding::new(where_fn.operator.clone(), BindingError::RepeatedBoundVariable));
}
// We should have exactly one binding. Destructure it now.
@ -78,7 +79,7 @@ impl ConjoiningClauses {
Binding::BindRel(bindings) => {
let bindings_count = bindings.len();
if bindings_count != 1 {
bail!(ErrorKind::InvalidBinding(where_fn.operator.clone(),
bail!(InvalidBinding::new(where_fn.operator.clone(),
BindingError::InvalidNumberOfBindings {
number: bindings_count,
expected: 1,
@ -92,7 +93,7 @@ impl ConjoiningClauses {
Binding::BindColl(v) => v,
Binding::BindScalar(_) |
Binding::BindTuple(_) => {
bail!(ErrorKind::InvalidBinding(where_fn.operator.clone(), BindingError::ExpectedBindRelOrBindColl))
bail!(InvalidBinding::new(where_fn.operator.clone(), BindingError::ExpectedBindRelOrBindColl))
},
};
@ -101,7 +102,7 @@ impl ConjoiningClauses {
// TODO: process source variables.
match args.next().unwrap() {
FnArg::SrcVar(SrcVar::DefaultSrc) => {},
_ => bail!(ErrorKind::InvalidArgument(where_fn.operator.clone(), "source variable", 0)),
_ => bail!(AlgebrizerError::InvalidArgument(where_fn.operator.clone(), "source variable", 0)),
}
let tx1 = self.resolve_tx_argument(&known.schema, &where_fn.operator, 1, args.next().unwrap())?;
@ -138,17 +139,17 @@ impl ConjoiningClauses {
pub(crate) fn apply_tx_data(&mut self, known: Known, where_fn: WhereFn) -> Result<()> {
if where_fn.args.len() != 2 {
bail!(ErrorKind::InvalidNumberOfArguments(where_fn.operator.clone(), where_fn.args.len(), 2));
bail!(AlgebrizerError::InvalidNumberOfArguments(where_fn.operator.clone(), where_fn.args.len(), 2));
}
if where_fn.binding.is_empty() {
// The binding must introduce at least one bound variable.
bail!(ErrorKind::InvalidBinding(where_fn.operator.clone(), BindingError::NoBoundVariable));
bail!(InvalidBinding::new(where_fn.operator.clone(), BindingError::NoBoundVariable));
}
if !where_fn.binding.is_valid() {
// The binding must not duplicate bound variables.
bail!(ErrorKind::InvalidBinding(where_fn.operator.clone(), BindingError::RepeatedBoundVariable));
bail!(InvalidBinding::new(where_fn.operator.clone(), BindingError::RepeatedBoundVariable));
}
// We should have at most five bindings. Destructure them now.
@ -156,7 +157,7 @@ impl ConjoiningClauses {
Binding::BindRel(bindings) => {
let bindings_count = bindings.len();
if bindings_count < 1 || bindings_count > 5 {
bail!(ErrorKind::InvalidBinding(where_fn.operator.clone(),
bail!(InvalidBinding::new(where_fn.operator.clone(),
BindingError::InvalidNumberOfBindings {
number: bindings.len(),
expected: 5,
@ -166,7 +167,7 @@ impl ConjoiningClauses {
},
Binding::BindScalar(_) |
Binding::BindTuple(_) |
Binding::BindColl(_) => bail!(ErrorKind::InvalidBinding(where_fn.operator.clone(), BindingError::ExpectedBindRel)),
Binding::BindColl(_) => bail!(InvalidBinding::new(where_fn.operator.clone(), BindingError::ExpectedBindRel)),
};
let mut bindings = bindings.into_iter();
let b_e = bindings.next().unwrap_or(VariableOrPlaceholder::Placeholder);
@ -180,7 +181,7 @@ impl ConjoiningClauses {
// TODO: process source variables.
match args.next().unwrap() {
FnArg::SrcVar(SrcVar::DefaultSrc) => {},
_ => bail!(ErrorKind::InvalidArgument(where_fn.operator.clone(), "source variable", 0)),
_ => bail!(AlgebrizerError::InvalidArgument(where_fn.operator.clone(), "source variable", 0)),
}
let tx = self.resolve_tx_argument(&known.schema, &where_fn.operator, 1, args.next().unwrap())?;

View file

@ -17,7 +17,7 @@ use clauses::{
};
use errors::{
ErrorKind,
AlgebrizerError,
Result,
};
@ -39,7 +39,7 @@ impl ConjoiningClauses {
"ground" => self.apply_ground(known, where_fn),
"tx-data" => self.apply_tx_data(known, where_fn),
"tx-ids" => self.apply_tx_ids(known, where_fn),
_ => bail!(ErrorKind::UnknownFunction(where_fn.operator.clone())),
_ => bail!(AlgebrizerError::UnknownFunction(where_fn.operator.clone())),
}
}
}

View file

@ -10,8 +10,18 @@
extern crate mentat_query;
use std; // To refer to std::result::Result.
use std::fmt;
use std::fmt::Display;
use failure::{
Backtrace,
Context,
Error,
Fail,
};
use mentat_core::{
EdnParseError,
ValueType,
ValueTypeSet,
};
@ -20,7 +30,53 @@ use self::mentat_query::{
PlainSymbol,
};
#[derive(Clone, Debug, Eq, PartialEq)]
pub type Result<T> = std::result::Result<T, Error>;
#[macro_export]
macro_rules! bail {
($e:expr) => (
return Err($e.into());
)
}
#[derive(Debug)]
pub struct InvalidBinding {
pub function: PlainSymbol,
pub inner: Context<BindingError>
}
impl InvalidBinding {
pub fn new(function: PlainSymbol, inner: BindingError) -> InvalidBinding {
InvalidBinding {
function: function,
inner: Context::new(inner)
}
}
}
impl Fail for InvalidBinding {
fn cause(&self) -> Option<&Fail> {
self.inner.cause()
}
fn backtrace(&self) -> Option<&Backtrace> {
self.inner.backtrace()
}
}
impl Display for InvalidBinding {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "invalid binding for {}: {:?}", self.function, self.inner)
}
}
impl Display for BindingError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "BindingError: {:?}", self)
}
}
#[derive(Clone, Debug, Eq, PartialEq, Fail)]
pub enum BindingError {
NoBoundVariable,
UnexpectedBinding,
@ -40,98 +96,52 @@ pub enum BindingError {
InvalidNumberOfBindings { number: usize, expected: usize },
}
error_chain! {
types {
Error, ErrorKind, ResultExt, Result;
}
#[derive(Debug, Fail)]
pub enum AlgebrizerError {
#[fail(display = "{} var {} is duplicated", _0, _1)]
DuplicateVariableError(PlainSymbol, &'static str),
foreign_links {
EdnParseError(EdnParseError);
}
#[fail(display = "unexpected FnArg")]
UnsupportedArgument,
errors {
UnsupportedArgument {
description("unexpected FnArg")
display("unexpected FnArg")
}
#[fail(display = "value of type {} provided for var {}, expected {}", _0, _1, _2)]
InputTypeDisagreement(PlainSymbol, ValueType, ValueType),
InputTypeDisagreement(var: PlainSymbol, declared: ValueType, provided: ValueType) {
description("input type disagreement")
display("value of type {} provided for var {}, expected {}", provided, var, declared)
}
#[fail(display = "invalid number of arguments to {}: expected {}, got {}.", _0, _1, _2)]
InvalidNumberOfArguments(PlainSymbol, usize, usize),
UnrecognizedIdent(ident: String) {
description("no entid found for ident")
display("no entid found for ident: {}", ident)
}
#[fail(display = "invalid argument to {}: expected {} in position {}.", _0, _1, _2)]
InvalidArgument(PlainSymbol, &'static str, usize),
UnknownFunction(name: PlainSymbol) {
description("no such function")
display("no function named {}", name)
}
#[fail(display = "invalid argument to {}: expected one of {:?} in position {}.", _0, _1, _2)]
InvalidArgumentType(PlainSymbol, ValueTypeSet, usize),
InvalidNumberOfArguments(function: PlainSymbol, number: usize, expected: usize) {
description("invalid number of arguments")
display("invalid number of arguments to {}: expected {}, got {}.", function, expected, number)
}
UnboundVariable(name: PlainSymbol) {
description("unbound variable in order clause or function call")
display("unbound variable: {}", name)
}
InvalidBinding(function: PlainSymbol, binding_error: BindingError) {
description("invalid binding")
display("invalid binding for {}: {:?}.", function, binding_error)
}
GroundBindingsMismatch {
description("mismatched bindings in ground")
display("mismatched bindings in ground")
}
InvalidGroundConstant {
// TODO: flesh this out.
description("invalid expression in ground constant")
display("invalid expression in ground constant")
}
#[fail(display = "invalid expression in ground constant")]
InvalidGroundConstant,
InvalidArgument(function: PlainSymbol, expected: &'static str, position: usize) {
description("invalid argument")
display("invalid argument to {}: expected {} in position {}.", function, expected, position)
}
#[fail(display = "invalid limit {} of type {}: expected natural number.", _0, _1)]
InvalidLimit(String, ValueType),
InvalidArgumentType(function: PlainSymbol, expected_types: ValueTypeSet, position: usize) {
description("invalid argument")
display("invalid argument to {}: expected one of {:?} in position {}.", function, expected_types, position)
}
#[fail(display = "mismatched bindings in ground")]
GroundBindingsMismatch,
InvalidLimit(val: String, kind: ValueType) {
description("invalid limit")
display("invalid limit {} of type {}: expected natural number.", val, kind)
}
#[fail(display = "no entid found for ident: {}", _0)]
UnrecognizedIdent(String),
#[fail(display = "no function named {}", _0)]
UnknownFunction(PlainSymbol),
#[fail(display = ":limit var {} not present in :in", _0)]
UnknownLimitVar(PlainSymbol),
#[fail(display = "unbound variable {} in order clause or function call", _0)]
UnboundVariable(PlainSymbol),
NonMatchingVariablesInOrClause {
// TODO: flesh out.
description("non-matching variables in 'or' clause")
display("non-matching variables in 'or' clause")
}
#[fail(display = "non-matching variables in 'or' clause")]
NonMatchingVariablesInOrClause,
NonMatchingVariablesInNotClause {
// TODO: flesh out.
description("non-matching variables in 'not' clause")
display("non-matching variables in 'not' clause")
}
DuplicateVariableError(name: PlainSymbol, clause: &'static str) {
description("duplicate variables")
display("{} var {} is duplicated", clause, name)
}
UnknownLimitVar(name: PlainSymbol) {
description(":limit var not present in :in")
display(":limit var {} not present in :in", name)
}
}
#[fail(display = "non-matching variables in 'not' clause")]
NonMatchingVariablesInNotClause,
}

View file

@ -8,10 +8,9 @@
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#![recursion_limit="128"]
extern crate failure;
#[macro_use]
extern crate error_chain;
#[macro_use] extern crate failure_derive;
extern crate mentat_core;
extern crate mentat_query;
@ -20,6 +19,7 @@ use std::collections::BTreeSet;
use std::ops::Sub;
use std::rc::Rc;
#[macro_use]
mod errors;
mod types;
mod validate;
@ -48,10 +48,10 @@ use mentat_query::{
};
pub use errors::{
AlgebrizerError,
BindingError,
Error,
ErrorKind,
Result,
InvalidBinding,
};
pub use clauses::{
@ -216,7 +216,7 @@ fn validate_and_simplify_order(cc: &ConjoiningClauses, order: Option<Vec<Order>>
// Fail if the var isn't bound by the query.
if !cc.column_bindings.contains_key(&var) {
bail!(ErrorKind::UnboundVariable(var.name()));
bail!(AlgebrizerError::UnboundVariable(var.name()))
}
// Otherwise, determine if we also need to order by type…
@ -242,14 +242,14 @@ fn simplify_limit(mut query: AlgebraicQuery) -> Result<AlgebraicQuery> {
Some(TypedValue::Long(n)) => {
if n <= 0 {
// User-specified limits should always be natural numbers (> 0).
bail!(ErrorKind::InvalidLimit(n.to_string(), ValueType::Long));
bail!(AlgebrizerError::InvalidLimit(n.to_string(), ValueType::Long))
} else {
Some(Limit::Fixed(n as u64))
}
},
Some(val) => {
// Same.
bail!(ErrorKind::InvalidLimit(format!("{:?}", val), val.value_type()));
bail!(AlgebrizerError::InvalidLimit(format!("{:?}", val), val.value_type()))
},
None => {
// We know that the limit variable is mentioned in `:in`.
@ -357,7 +357,7 @@ impl FindQuery {
for var in parsed.in_vars.into_iter() {
if !set.insert(var.clone()) {
bail!(ErrorKind::DuplicateVariableError(var.name(), ":in"));
bail!(AlgebrizerError::DuplicateVariableError(var.name(), ":in"));
}
}
@ -369,7 +369,7 @@ impl FindQuery {
for var in parsed.with.into_iter() {
if !set.insert(var.clone()) {
bail!(ErrorKind::DuplicateVariableError(var.name(), ":with"));
bail!(AlgebrizerError::DuplicateVariableError(var.name(), ":with"));
}
}
@ -379,7 +379,7 @@ impl FindQuery {
// Make sure that if we have `:limit ?x`, `?x` appears in `:in`.
if let Limit::Variable(ref v) = parsed.limit {
if !in_vars.contains(v) {
bail!(ErrorKind::UnknownLimitVar(v.name()));
bail!(AlgebrizerError::UnknownLimitVar(v.name()));
}
}

View file

@ -19,7 +19,7 @@ use mentat_query::{
};
use errors::{
ErrorKind,
AlgebrizerError,
Result,
};
@ -56,7 +56,7 @@ pub(crate) fn validate_or_join(or_join: &OrJoin) -> Result<()> {
let template = clauses.next().unwrap().collect_mentioned_variables();
for clause in clauses {
if template != clause.collect_mentioned_variables() {
bail!(ErrorKind::NonMatchingVariablesInOrClause);
bail!(AlgebrizerError::NonMatchingVariablesInOrClause)
}
}
Ok(())
@ -67,7 +67,7 @@ pub(crate) fn validate_or_join(or_join: &OrJoin) -> Result<()> {
let var_set: BTreeSet<Variable> = vars.iter().cloned().collect();
for clause in &or_join.clauses {
if !var_set.is_subset(&clause.collect_mentioned_variables()) {
bail!(ErrorKind::NonMatchingVariablesInOrClause);
bail!(AlgebrizerError::NonMatchingVariablesInOrClause)
}
}
Ok(())
@ -85,7 +85,7 @@ pub(crate) fn validate_not_join(not_join: &NotJoin) -> Result<()> {
// The joined vars must each appear somewhere in the clause's mentioned variables.
let var_set: BTreeSet<Variable> = vars.iter().cloned().collect();
if !var_set.is_subset(&not_join.collect_mentioned_variables()) {
bail!(ErrorKind::NonMatchingVariablesInNotClause);
bail!(AlgebrizerError::NonMatchingVariablesInNotClause)
}
Ok(())
},

View file

@ -30,10 +30,10 @@ use mentat_query::{
};
use mentat_query_algebrizer::{
AlgebrizerError,
BindingError,
ComputedTable,
Error,
ErrorKind,
InvalidBinding,
Known,
QueryInputs,
};
@ -256,8 +256,8 @@ fn test_ground_coll_heterogeneous_types() {
let schema = prepopulated_schema();
let known = Known::for_schema(&schema);
let e = bails(known, &q);
match e {
Error(ErrorKind::InvalidGroundConstant, _) => {
match e.downcast().expect("proper error") {
AlgebrizerError::InvalidGroundConstant => {
},
_ => {
panic!();
@ -271,8 +271,8 @@ fn test_ground_rel_heterogeneous_types() {
let schema = prepopulated_schema();
let known = Known::for_schema(&schema);
let e = bails(known, &q);
match e {
Error(ErrorKind::InvalidGroundConstant, _) => {
match e.downcast().expect("proper error") {
AlgebrizerError::InvalidGroundConstant => {
},
_ => {
panic!();
@ -285,11 +285,10 @@ fn test_ground_tuple_duplicate_vars() {
let q = r#"[:find ?x :where [?x :foo/age ?v] [(ground [8 10]) [?x ?x]]]"#;
let schema = prepopulated_schema();
let known = Known::for_schema(&schema);
let e = bails(known, &q);
match e {
Error(ErrorKind::InvalidBinding(v, e), _) => {
assert_eq!(v, PlainSymbol::plain("ground"));
assert_eq!(e, BindingError::RepeatedBoundVariable);
let e: InvalidBinding = bails(known, &q).downcast().expect("proper error");
assert_eq!(e.function, PlainSymbol::plain("ground"));
match e.inner.get_context() {
&BindingError::RepeatedBoundVariable => {
},
_ => {
panic!();
@ -302,11 +301,10 @@ fn test_ground_rel_duplicate_vars() {
let q = r#"[:find ?x :where [?x :foo/age ?v] [(ground [[8 10]]) [[?x ?x]]]]"#;
let schema = prepopulated_schema();
let known = Known::for_schema(&schema);
let e = bails(known, &q);
match e {
Error(ErrorKind::InvalidBinding(v, e), _) => {
assert_eq!(v, PlainSymbol::plain("ground"));
assert_eq!(e, BindingError::RepeatedBoundVariable);
let e: InvalidBinding = bails(known, &q).downcast().expect("expected InvalidBinding");
assert_eq!(e.function, PlainSymbol::plain("ground"));
match e.inner.get_context() {
&BindingError::RepeatedBoundVariable => {
},
_ => {
panic!();
@ -319,9 +317,9 @@ fn test_ground_nonexistent_variable_invalid() {
let q = r#"[:find ?x ?e :where [?e _ ?x] (not [(ground 17) ?v])]"#;
let schema = prepopulated_schema();
let known = Known::for_schema(&schema);
let e = bails(known, &q);
let e = bails(known, &q).downcast().expect("proper error");
match e {
Error(ErrorKind::UnboundVariable(PlainSymbol(v)), _) => {
AlgebrizerError::UnboundVariable(PlainSymbol(v)) => {
assert_eq!(v, "?v".to_string());
},
_ => {
@ -343,9 +341,9 @@ fn test_unbound_input_variable_invalid() {
let i = QueryInputs::new(types, BTreeMap::default()).expect("valid QueryInputs");
let e = bails_with_inputs(known, &q, i);
let e = bails_with_inputs(known, &q, i).downcast().expect("proper error");
match e {
Error(ErrorKind::UnboundVariable(v), _) => {
AlgebrizerError::UnboundVariable(v) => {
assert_eq!(v.0, "?x");
},
_ => {

View file

@ -31,8 +31,8 @@ use mentat_query::{
};
use mentat_query_algebrizer::{
AlgebrizerError,
EmptyBecause,
ErrorKind,
Known,
QueryInputs,
};
@ -78,8 +78,8 @@ fn test_instant_predicates_require_instants() {
:where
[?e :foo/date ?t]
[(> ?t "2017-06-16T00:56:41.257Z")]]"#;
match bails(known, query).0 {
ErrorKind::InvalidArgumentType(op, why, idx) => {
match bails(known, query).downcast().expect("proper cause") {
AlgebrizerError::InvalidArgumentType(op, why, idx) => {
assert_eq!(op, PlainSymbol::plain(">"));
assert_eq!(why, ValueTypeSet::of_numeric_and_instant_types());
assert_eq!(idx, 1);
@ -91,8 +91,8 @@ fn test_instant_predicates_require_instants() {
:where
[?e :foo/date ?t]
[(> "2017-06-16T00:56:41.257Z", ?t)]]"#;
match bails(known, query).0 {
ErrorKind::InvalidArgumentType(op, why, idx) => {
match bails(known, query).downcast().expect("proper cause") {
AlgebrizerError::InvalidArgumentType(op, why, idx) => {
assert_eq!(op, PlainSymbol::plain(">"));
assert_eq!(why, ValueTypeSet::of_numeric_and_instant_types());
assert_eq!(idx, 0); // We get this right.

View file

@ -13,6 +13,9 @@
// this module will get warnings otherwise).
#![allow(dead_code)]
extern crate failure;
use self::failure::Error;
use mentat_core::{
Attribute,
Entid,
@ -26,7 +29,6 @@ use mentat_query::{
use mentat_query_algebrizer::{
ConjoiningClauses,
Error,
Known,
QueryInputs,
algebrize,

View file

@ -4,7 +4,8 @@ version = "0.0.1"
workspace = ".."
[dependencies]
error-chain = { git = "https://github.com/rnewman/error-chain", branch = "rnewman/sync" }
failure = "0.1.1"
failure_derive = "0.1.1"
indexmap = "1"
[dependencies.rusqlite]

View file

@ -33,7 +33,7 @@ use mentat_query_sql::{
};
use errors::{
ErrorKind,
ProjectorError,
Result,
};
@ -79,7 +79,7 @@ impl SimpleAggregationOp {
pub(crate) fn is_applicable_to_types(&self, possibilities: ValueTypeSet) -> Result<ValueType> {
use self::SimpleAggregationOp::*;
if possibilities.is_empty() {
bail!(ErrorKind::CannotProjectImpossibleBinding(*self))
bail!(ProjectorError::CannotProjectImpossibleBinding(*self))
}
match self {
@ -92,7 +92,7 @@ impl SimpleAggregationOp {
// The mean of a set of numeric values will always, for our purposes, be a double.
Ok(ValueType::Double)
} else {
bail!(ErrorKind::CannotApplyAggregateOperationToTypes(*self, possibilities))
bail!(ProjectorError::CannotApplyAggregateOperationToTypes(*self, possibilities))
}
},
&Sum => {
@ -104,7 +104,7 @@ impl SimpleAggregationOp {
Ok(ValueType::Long)
}
} else {
bail!(ErrorKind::CannotApplyAggregateOperationToTypes(*self, possibilities))
bail!(ProjectorError::CannotApplyAggregateOperationToTypes(*self, possibilities))
}
},
@ -124,7 +124,7 @@ impl SimpleAggregationOp {
// These types are unordered.
Keyword | Ref | Uuid => {
bail!(ErrorKind::CannotApplyAggregateOperationToTypes(*self, possibilities))
bail!(ProjectorError::CannotApplyAggregateOperationToTypes(*self, possibilities))
},
}
} else {
@ -139,7 +139,7 @@ impl SimpleAggregationOp {
Ok(ValueType::Long)
}
} else {
bail!(ErrorKind::CannotApplyAggregateOperationToTypes(*self, possibilities))
bail!(ProjectorError::CannotApplyAggregateOperationToTypes(*self, possibilities))
}
}
},

View file

@ -8,72 +8,58 @@
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
use rusqlite;
use std; // To refer to std::result::Result.
use failure::{
Error,
};
use mentat_core::{
ValueTypeSet,
};
use mentat_db;
use mentat_query::{
PlainSymbol,
};
use mentat_query_pull;
use aggregates::{
SimpleAggregationOp,
};
error_chain! {
types {
Error, ErrorKind, ResultExt, Result;
}
#[macro_export]
macro_rules! bail {
($e:expr) => (
return Err($e.into());
)
}
errors {
pub type Result<T> = std::result::Result<T, Error>;
#[derive(Debug, Fail)]
pub enum ProjectorError {
/// We're just not done yet. Message that the feature is recognized but not yet
/// implemented.
NotYetImplemented(t: String) {
description("not yet implemented")
display("not yet implemented: {}", t)
}
CannotProjectImpossibleBinding(op: SimpleAggregationOp) {
description("no possible types for variable in projection list")
display("no possible types for value provided to {:?}", op)
}
CannotApplyAggregateOperationToTypes(op: SimpleAggregationOp, types: ValueTypeSet) {
description("cannot apply projection operation to types")
display("cannot apply projection operation {:?} to types {:?}", op, types)
}
InvalidProjection(t: String) {
description("invalid projection")
display("invalid projection: {}", t)
}
UnboundVariable(var: PlainSymbol) {
description("cannot project unbound variable")
display("cannot project unbound variable {:?}", var)
}
NoTypeAvailableForVariable(var: PlainSymbol) {
description("cannot find type for variable")
display("cannot find type for variable {:?}", var)
}
UnexpectedResultsType(actual: &'static str, expected: &'static str) {
description("unexpected query results type")
display("expected {}, got {}", expected, actual)
}
AmbiguousAggregates(min_max_count: usize, corresponding_count: usize) {
description("ambiguous aggregates")
display("min/max expressions: {} (max 1), corresponding: {}", min_max_count, corresponding_count)
}
}
#[fail(display = "not yet implemented: {}", _0)]
NotYetImplemented(String),
foreign_links {
Rusqlite(rusqlite::Error);
}
#[fail(display = "no possible types for value provided to {:?}", _0)]
CannotProjectImpossibleBinding(SimpleAggregationOp),
links {
DbError(mentat_db::Error, mentat_db::ErrorKind);
PullError(mentat_query_pull::errors::Error, mentat_query_pull::errors::ErrorKind);
}
#[fail(display = "cannot apply projection operation {:?} to types {:?}", _0, _1)]
CannotApplyAggregateOperationToTypes(SimpleAggregationOp, ValueTypeSet),
#[fail(display = "invalid projection: {}", _0)]
InvalidProjection(String),
#[fail(display = "cannot project unbound variable {:?}", _0)]
UnboundVariable(PlainSymbol),
#[fail(display = "cannot find type for variable {:?}", _0)]
NoTypeAvailableForVariable(PlainSymbol),
#[fail(display = "expected {}, got {}", _0, _1)]
UnexpectedResultsType(&'static str, &'static str),
#[fail(display = "min/max expressions: {} (max 1), corresponding: {}", _0, _1)]
AmbiguousAggregates(usize, usize),
}

View file

@ -8,8 +8,10 @@
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
extern crate failure;
#[macro_use]
extern crate error_chain;
extern crate failure_derive;
extern crate indexmap;
extern crate rusqlite;
@ -67,12 +69,14 @@ use mentat_query_sql::{
Projection,
};
#[macro_use]
pub mod errors;
mod aggregates;
mod project;
mod projectors;
mod pull;
mod relresult;
pub mod errors;
pub use aggregates::{
SimpleAggregationOp,
@ -109,7 +113,7 @@ pub use relresult::{
};
use errors::{
ErrorKind,
ProjectorError,
Result,
};
@ -296,35 +300,35 @@ impl QueryResults {
pub fn into_scalar(self) -> Result<Option<Binding>> {
match self {
QueryResults::Scalar(o) => Ok(o),
QueryResults::Coll(_) => bail!(ErrorKind::UnexpectedResultsType("coll", "scalar")),
QueryResults::Tuple(_) => bail!(ErrorKind::UnexpectedResultsType("tuple", "scalar")),
QueryResults::Rel(_) => bail!(ErrorKind::UnexpectedResultsType("rel", "scalar")),
QueryResults::Coll(_) => bail!(ProjectorError::UnexpectedResultsType("coll", "scalar")),
QueryResults::Tuple(_) => bail!(ProjectorError::UnexpectedResultsType("tuple", "scalar")),
QueryResults::Rel(_) => bail!(ProjectorError::UnexpectedResultsType("rel", "scalar")),
}
}
pub fn into_coll(self) -> Result<Vec<Binding>> {
match self {
QueryResults::Scalar(_) => bail!(ErrorKind::UnexpectedResultsType("scalar", "coll")),
QueryResults::Scalar(_) => bail!(ProjectorError::UnexpectedResultsType("scalar", "coll")),
QueryResults::Coll(c) => Ok(c),
QueryResults::Tuple(_) => bail!(ErrorKind::UnexpectedResultsType("tuple", "coll")),
QueryResults::Rel(_) => bail!(ErrorKind::UnexpectedResultsType("rel", "coll")),
QueryResults::Tuple(_) => bail!(ProjectorError::UnexpectedResultsType("tuple", "coll")),
QueryResults::Rel(_) => bail!(ProjectorError::UnexpectedResultsType("rel", "coll")),
}
}
pub fn into_tuple(self) -> Result<Option<Vec<Binding>>> {
match self {
QueryResults::Scalar(_) => bail!(ErrorKind::UnexpectedResultsType("scalar", "tuple")),
QueryResults::Coll(_) => bail!(ErrorKind::UnexpectedResultsType("coll", "tuple")),
QueryResults::Scalar(_) => bail!(ProjectorError::UnexpectedResultsType("scalar", "tuple")),
QueryResults::Coll(_) => bail!(ProjectorError::UnexpectedResultsType("coll", "tuple")),
QueryResults::Tuple(t) => Ok(t),
QueryResults::Rel(_) => bail!(ErrorKind::UnexpectedResultsType("rel", "tuple")),
QueryResults::Rel(_) => bail!(ProjectorError::UnexpectedResultsType("rel", "tuple")),
}
}
pub fn into_rel(self) -> Result<RelResult<Binding>> {
match self {
QueryResults::Scalar(_) => bail!(ErrorKind::UnexpectedResultsType("scalar", "rel")),
QueryResults::Coll(_) => bail!(ErrorKind::UnexpectedResultsType("coll", "rel")),
QueryResults::Tuple(_) => bail!(ErrorKind::UnexpectedResultsType("tuple", "rel")),
QueryResults::Scalar(_) => bail!(ProjectorError::UnexpectedResultsType("scalar", "rel")),
QueryResults::Coll(_) => bail!(ProjectorError::UnexpectedResultsType("coll", "rel")),
QueryResults::Tuple(_) => bail!(ProjectorError::UnexpectedResultsType("tuple", "rel")),
QueryResults::Rel(r) => Ok(r),
}
}

View file

@ -55,7 +55,7 @@ use aggregates::{
};
use errors::{
ErrorKind,
ProjectorError,
Result,
};
@ -127,14 +127,14 @@ fn candidate_type_column(cc: &ConjoiningClauses, var: &Variable) -> Result<(Colu
let type_name = VariableColumn::VariableTypeTag(var.clone()).column_name();
(ColumnOrExpression::Column(alias), type_name)
})
.ok_or_else(|| ErrorKind::UnboundVariable(var.name()).into())
.ok_or_else(|| ProjectorError::UnboundVariable(var.name()).into())
}
fn cc_column(cc: &ConjoiningClauses, var: &Variable) -> Result<QualifiedAlias> {
cc.column_bindings
.get(var)
.and_then(|cols| cols.get(0).cloned())
.ok_or_else(|| ErrorKind::UnboundVariable(var.name()).into())
.ok_or_else(|| ProjectorError::UnboundVariable(var.name()).into())
}
fn candidate_column(cc: &ConjoiningClauses, var: &Variable) -> Result<(ColumnOrExpression, Name)> {
@ -211,18 +211,18 @@ pub(crate) fn project_elements<'a, I: IntoIterator<Item = &'a Element>>(
match e {
&Element::Variable(ref var) => {
if outer_variables.contains(var) {
bail!(ErrorKind::InvalidProjection(format!("Duplicate variable {} in query.", var)));
bail!(ProjectorError::InvalidProjection(format!("Duplicate variable {} in query.", var)));
}
if corresponded_variables.contains(var) {
bail!(ErrorKind::InvalidProjection(format!("Can't project both {} and `(the {})` from a query.", var, var)));
bail!(ProjectorError::InvalidProjection(format!("Can't project both {} and `(the {})` from a query.", var, var)));
}
},
&Element::Corresponding(ref var) => {
if outer_variables.contains(var) {
bail!(ErrorKind::InvalidProjection(format!("Can't project both {} and `(the {})` from a query.", var, var)));
bail!(ProjectorError::InvalidProjection(format!("Can't project both {} and `(the {})` from a query.", var, var)));
}
if corresponded_variables.contains(var) {
bail!(ErrorKind::InvalidProjection(format!("`(the {})` appears twice in query.", var)));
bail!(ProjectorError::InvalidProjection(format!("`(the {})` appears twice in query.", var)));
}
},
&Element::Aggregate(_) => {
@ -346,7 +346,7 @@ pub(crate) fn project_elements<'a, I: IntoIterator<Item = &'a Element>>(
i += 1;
} else {
// TODO: complex aggregates.
bail!(ErrorKind::NotYetImplemented("complex aggregates".into()));
bail!(ProjectorError::NotYetImplemented("complex aggregates".into()));
}
},
}
@ -355,13 +355,13 @@ pub(crate) fn project_elements<'a, I: IntoIterator<Item = &'a Element>>(
match (min_max_count, corresponded_variables.len()) {
(0, 0) | (_, 0) => {},
(0, _) => {
bail!(ErrorKind::InvalidProjection("Warning: used `the` without `min` or `max`.".to_string()));
bail!(ProjectorError::InvalidProjection("Warning: used `the` without `min` or `max`.".to_string()));
},
(1, _) => {
// This is the success case!
},
(n, c) => {
bail!(ErrorKind::AmbiguousAggregates(n, c));
bail!(ProjectorError::AmbiguousAggregates(n, c));
},
}
@ -465,7 +465,7 @@ pub(crate) fn project_elements<'a, I: IntoIterator<Item = &'a Element>>(
.extracted_types
.get(&var)
.cloned()
.ok_or_else(|| ErrorKind::NoTypeAvailableForVariable(var.name().clone()))?;
.ok_or_else(|| ProjectorError::NoTypeAvailableForVariable(var.name().clone()))?;
inner_projection.push(ProjectedColumn(ColumnOrExpression::Column(type_col), type_name.clone()));
}
if group {

View file

@ -30,9 +30,7 @@ use mentat_query_pull::{
Puller,
};
use errors::{
Result,
};
use errors::Result;
use super::{
Index,

View file

@ -99,11 +99,10 @@ fn test_the_without_max_or_min() {
let projection = query_projection(&schema, &algebrized);
assert!(projection.is_err());
use ::mentat_query_projector::errors::{
ErrorKind,
Error,
ProjectorError,
};
match projection {
Result::Err(Error(ErrorKind::InvalidProjection(s) , _)) => {
match projection.err().expect("expected failure").downcast().expect("expected specific error") {
ProjectorError::InvalidProjection(s) => {
assert_eq!(s.as_str(), "Warning: used `the` without `min` or `max`.");
},
_ => panic!(),

View file

@ -4,7 +4,8 @@ version = "0.0.1"
workspace = ".."
[dependencies]
error-chain = { git = "https://github.com/rnewman/error-chain", branch = "rnewman/sync" }
failure = "0.1.1"
failure_derive = "0.1.1"
[dependencies.rusqlite]
version = "0.13"

View file

@ -8,28 +8,23 @@
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
use std; // To refer to std::result::Result.
use mentat_core::{
Entid,
};
error_chain! {
types {
Error, ErrorKind, ResultExt, Result;
}
use failure::{
Error,
};
errors {
UnnamedAttribute(id: Entid) {
description("unnamed attribute")
display("attribute {:?} has no name", id)
}
pub type Result<T> = std::result::Result<T, Error>;
RepeatedDbId {
description(":db/id repeated")
display(":db/id repeated")
}
}
#[derive(Debug, Fail)]
pub enum PullError {
#[fail(display = "attribute {:?} has no name", _0)]
UnnamedAttribute(Entid),
links {
DbError(::mentat_db::Error, ::mentat_db::ErrorKind);
}
#[fail(display = ":db/id repeated")]
RepeatedDbId,
}

View file

@ -57,8 +57,10 @@
/// [*]))
///! ```
extern crate failure;
#[macro_use]
extern crate error_chain;
extern crate failure_derive;
extern crate rusqlite;
@ -101,7 +103,7 @@ use mentat_query::{
pub mod errors;
use errors::{
ErrorKind,
PullError,
Result,
};
@ -163,7 +165,7 @@ impl Puller {
// In the unlikely event that we have an attribute with no name, we bail.
schema.get_ident(*i)
.map(|ident| ValueRc::new(ident.clone()))
.ok_or_else(|| ErrorKind::UnnamedAttribute(*i))
.ok_or_else(|| PullError::UnnamedAttribute(*i))
};
let mut names: BTreeMap<Entid, ValueRc<Keyword>> = Default::default();
@ -192,7 +194,7 @@ impl Puller {
&PullConcreteAttribute::Ident(ref i) if i.as_ref() == db_id.as_ref() => {
// We only allow :db/id once.
if db_id_alias.is_some() {
bail!(ErrorKind::RepeatedDbId);
Err(PullError::RepeatedDbId)?
}
db_id_alias = Some(alias.unwrap_or_else(|| db_id.to_value_rc()));
},

View file

@ -42,6 +42,7 @@ use mentat_sql::{
BuildQueryResult,
QueryBuilder,
QueryFragment,
SQLError,
SQLiteQueryBuilder,
SQLQuery,
};
@ -629,7 +630,7 @@ impl QueryFragment for SelectQuery {
}
impl SelectQuery {
pub fn to_sql_query(&self) -> mentat_sql::Result<SQLQuery> {
pub fn to_sql_query(&self) -> Result<SQLQuery, SQLError> {
let mut builder = SQLiteQueryBuilder::new();
self.push_sql(&mut builder).map(|_| builder.finish())
}

View file

@ -4,7 +4,8 @@ version = "0.0.1"
workspace = ".."
[dependencies]
error-chain = { git = "https://github.com/rnewman/error-chain", branch = "rnewman/sync" }
failure = "0.1.1"
failure_derive = "0.1.1"
[dependencies.mentat_core]
path = "../core"

View file

@ -8,8 +8,7 @@
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#[macro_use]
extern crate error_chain;
extern crate failure;
extern crate mentat_core;
extern crate mentat_query;
extern crate mentat_query_algebrizer;
@ -17,6 +16,8 @@ extern crate mentat_query_projector;
extern crate mentat_query_sql;
extern crate mentat_sql;
use failure::Error;
mod translate;
pub use mentat_query_sql::{
@ -29,15 +30,4 @@ pub use translate::{
query_to_select,
};
error_chain! {
types {
Error, ErrorKind, ResultExt, Result;
}
foreign_links {
}
links {
ProjectorError(mentat_query_projector::errors::Error, mentat_query_projector::errors::ErrorKind);
}
}
type Result<T> = std::result::Result<T, Error>;

View file

@ -4,7 +4,8 @@ version = "0.0.1"
workspace = ".."
[dependencies]
error-chain = { git = "https://github.com/rnewman/error-chain", branch = "rnewman/sync" }
failure = "0.1.1"
failure_derive = "0.1.1"
ordered-float = "0.5"
[dependencies.rusqlite]

View file

@ -7,9 +7,9 @@
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
extern crate failure;
#[macro_use]
extern crate error_chain;
#[macro_use] extern crate failure_derive;
extern crate ordered_float;
extern crate rusqlite;
@ -29,25 +29,16 @@ use mentat_core::{
pub use rusqlite::types::Value;
error_chain! {
types {
Error, ErrorKind, ResultExt, Result;
}
#[derive(Debug, Fail)]
pub enum SQLError {
#[fail(display = "invalid parameter name: {}", _0)]
InvalidParameterName(String),
errors {
InvalidParameterName(name: String) {
description("invalid parameter name")
display("invalid parameter name: '{}'", name)
}
BindParamCouldBeGenerated(name: String) {
description("parameter name could be generated")
display("parameter name could be generated: '{}'", name)
}
}
#[fail(display = "parameter name could be generated: '{}'", _0)]
BindParamCouldBeGenerated(String)
}
pub type BuildQueryResult = Result<()>;
pub type BuildQueryResult = Result<(), SQLError>;
/// We want to accumulate values that will later be substituted into a SQL statement execution.
/// This struct encapsulates the generated string and the _initial_ argument list.
@ -213,12 +204,12 @@ impl QueryBuilder for SQLiteQueryBuilder {
// Do some validation first.
// This is not free, but it's probably worth it for now.
if !name.chars().all(|c| char::is_alphanumeric(c) || c == '_') {
bail!(ErrorKind::InvalidParameterName(name.to_string()));
return Err(SQLError::InvalidParameterName(name.to_string()))
}
if name.starts_with(self.arg_prefix.as_str()) &&
name.chars().skip(self.arg_prefix.len()).all(char::is_numeric) {
bail!(ErrorKind::BindParamCouldBeGenerated(name.to_string()));
return Err(SQLError::BindParamCouldBeGenerated(name.to_string()))
}
self.push_sql("$");

View file

@ -93,7 +93,10 @@ use entity_builder::{
TermBuilder,
};
use errors::*;
use errors::{
Result,
MentatError,
};
use query::{
Known,
@ -474,7 +477,7 @@ impl<'a, 'c> InProgress<'a, 'c> {
// Retrying is tracked by https://github.com/mozilla/mentat/issues/357.
// This should not occur -- an attempt to take a competing IMMEDIATE transaction
// will fail with `SQLITE_BUSY`, causing this function to abort.
bail!("Lost the transact() race!");
bail!(MentatError::UnexpectedLostTransactRace);
}
// Commit the SQLite transaction while we hold the mutex.
@ -506,7 +509,7 @@ impl<'a, 'c> InProgress<'a, 'c> {
cache_action: CacheAction) -> Result<()> {
let attribute_entid: Entid = self.schema
.attribute_for_ident(&attribute)
.ok_or_else(|| ErrorKind::UnknownAttribute(attribute.to_string()))?.1.into();
.ok_or_else(|| MentatError::UnknownAttribute(attribute.to_string()))?.1.into();
match cache_action {
CacheAction::Register => {
@ -579,17 +582,16 @@ impl Conn {
/// Prepare the provided SQLite handle for use as a Mentat store. Creates tables but
/// _does not_ write the bootstrap schema. This constructor should only be used by
/// consumers that expect to populate raw transaction data themselves.
pub(crate) fn empty(sqlite: &mut rusqlite::Connection) -> Result<Conn> {
let (tx, db) = db::create_empty_current_version(sqlite)
.chain_err(|| "Unable to initialize Mentat store")?;
let (tx, db) = db::create_empty_current_version(sqlite)?;
tx.commit()?;
Ok(Conn::new(db.partition_map, db.schema))
}
pub fn connect(sqlite: &mut rusqlite::Connection) -> Result<Conn> {
let db = db::ensure_current_version(sqlite)
.chain_err(|| "Unable to initialize Mentat store")?;
let db = db::ensure_current_version(sqlite)?;
Ok(Conn::new(db.partition_map, db.schema))
}
@ -801,7 +803,7 @@ impl Conn {
{
attribute_entid = metadata.schema
.attribute_for_ident(&attribute)
.ok_or_else(|| ErrorKind::UnknownAttribute(attribute.to_string()))?.1.into();
.ok_or_else(|| MentatError::UnknownAttribute(attribute.to_string()))?.1.into();
}
let cache = &mut metadata.attribute_cache;
@ -869,11 +871,11 @@ mod tests {
.partition_map[":db.part/user"].index;
let t = format!("[[:db/add {} :db.schema/attribute \"tempid\"]]", next + 1);
match conn.transact(&mut sqlite, t.as_str()).unwrap_err() {
Error(ErrorKind::DbError(::mentat_db::errors::ErrorKind::UnrecognizedEntid(e)), _) => {
match conn.transact(&mut sqlite, t.as_str()).expect_err("expected transact error").downcast() {
Ok(::mentat_db::DbError::UnrecognizedEntid(e)) => {
assert_eq!(e, next + 1);
},
x => panic!("expected transact error, got {:?}", x),
x => panic!("expected db error, got {:?}", x),
}
// Transact two more tempids.
@ -896,12 +898,12 @@ mod tests {
// we should reject this, because the first ID was provided by the user!
let t = format!("[[:db/add {} :db.schema/attribute \"tempid\"]]", next);
match conn.transact(&mut sqlite, t.as_str()).unwrap_err() {
Error(ErrorKind::DbError(::mentat_db::errors::ErrorKind::UnrecognizedEntid(e)), _) => {
match conn.transact(&mut sqlite, t.as_str()).expect_err("expected transact error").downcast() {
Ok(::mentat_db::DbError::UnrecognizedEntid(e)) => {
// All this, despite this being the ID we were about to allocate!
assert_eq!(e, next);
},
x => panic!("expected transact error, got {:?}", x),
x => panic!("expected db error, got {:?}", x),
}
// And if we subsequently transact in a way that allocates one ID, we _will_ use that one.
@ -1057,9 +1059,9 @@ mod tests {
// Bad EDN: missing closing ']'.
let report = conn.transact(&mut sqlite, "[[:db/add \"t\" :db/ident :a/keyword]");
match report.unwrap_err() {
Error(ErrorKind::EdnParseError(_), _) => { },
x => panic!("expected EDN parse error, got {:?}", x),
match report.expect_err("expected transact to fail for bad edn").downcast() {
Ok(edn::ParseError { .. }) => { },
Err(x) => panic!("expected EDN parse error, got {:?}", x),
}
// Good EDN.
@ -1068,9 +1070,9 @@ mod tests {
// Bad transaction data: missing leading :db/add.
let report = conn.transact(&mut sqlite, "[[\"t\" :db/ident :b/keyword]]");
match report.unwrap_err() {
Error(ErrorKind::EdnParseError(_), _) => { },
x => panic!("expected EDN parse error, got {:?}", x),
match report.expect_err("expected transact error").downcast() {
Ok(edn::ParseError { .. }) => { },
Err(x) => panic!("expected EDN parse error, got {:?}", x),
}
// Good transaction data.
@ -1080,8 +1082,8 @@ mod tests {
// Bad transaction based on state of store: conflicting upsert.
let report = conn.transact(&mut sqlite, "[[:db/add \"u\" :db/ident :a/keyword]
[:db/add \"u\" :db/ident :b/keyword]]");
match report.unwrap_err() {
Error(ErrorKind::DbError(::mentat_db::errors::ErrorKind::SchemaConstraintViolation(_)), _) => { },
match report.expect_err("expected transact error").downcast() {
Ok(::mentat_db::DbError::SchemaConstraintViolation(_)) => { },
x => panic!("expected schema constraint violation, got {:?}", x),
}
}
@ -1099,8 +1101,8 @@ mod tests {
let kw = kw!(:foo/bat);
let schema = conn.current_schema();
let res = conn.cache(&mut sqlite, &schema, &kw, CacheDirection::Forward, CacheAction::Register);
match res.unwrap_err() {
Error(ErrorKind::UnknownAttribute(msg), _) => assert_eq!(msg, ":foo/bat"),
match res.expect_err("expected cache to fail").downcast() {
Ok(MentatError::UnknownAttribute(msg)) => assert_eq!(msg, ":foo/bat"),
x => panic!("expected UnknownAttribute error, got {:?}", x),
}
}

View file

@ -85,7 +85,7 @@ use conn::{
};
use errors::{
ErrorKind,
MentatError,
Result,
};
@ -277,12 +277,12 @@ impl<'a, 'c> InProgressBuilder<'a, 'c> {
let provided = tv.value_type();
let expected = attr.value_type;
if provided != expected {
bail!(ErrorKind::ValueTypeMismatch(provided, expected));
bail!(MentatError::ValueTypeMismatch(provided, expected));
}
}
attribute = aa;
} else {
bail!(ErrorKind::UnknownAttribute(a.to_string()));
bail!(MentatError::UnknownAttribute(a.to_string()));
}
Ok((attribute, v))
}
@ -380,15 +380,8 @@ impl FromThing<KnownEntid> for TypedValueOr<TempIdHandle> {
mod testing {
extern crate mentat_db;
use errors::{
Error,
ErrorKind,
};
// For matching inside a test.
use mentat_db::ErrorKind::{
UnrecognizedEntid,
};
use mentat_db::DbError;
use ::{
Conn,
@ -429,7 +422,7 @@ mod testing {
let mut in_progress = conn.begin_transaction(&mut sqlite).expect("begun successfully");
// This should fail: unrecognized entid.
if let Err(Error(ErrorKind::DbError(UnrecognizedEntid(e)), _)) = in_progress.transact_terms(terms, tempids) {
if let Ok(DbError::UnrecognizedEntid(e)) = in_progress.transact_terms(terms, tempids).expect_err("expected transact to fail").downcast() {
assert_eq!(e, 999);
} else {
panic!("Should have rejected the entid.");

View file

@ -10,102 +10,63 @@
#![allow(dead_code)]
use rusqlite;
use uuid;
use std; // To refer to std::result::Result.
use std::collections::BTreeSet;
use edn;
use failure::Error;
use mentat_core::{
Attribute,
ValueType,
};
use mentat_db;
use mentat_query;
use mentat_query_algebrizer;
use mentat_query_projector;
use mentat_query_pull;
use mentat_query_translator;
use mentat_sql;
use mentat_tolstoy;
error_chain! {
types {
Error, ErrorKind, ResultExt, Result;
}
pub type Result<T> = std::result::Result<T, Error>;
foreign_links {
EdnParseError(edn::ParseError);
Rusqlite(rusqlite::Error);
UuidParseError(uuid::ParseError);
IoError(::std::io::Error);
}
links {
DbError(mentat_db::Error, mentat_db::ErrorKind);
QueryError(mentat_query_algebrizer::Error, mentat_query_algebrizer::ErrorKind); // Let's not leak the term 'algebrizer'.
ProjectorError(mentat_query_projector::errors::Error, mentat_query_projector::errors::ErrorKind);
PullError(mentat_query_pull::errors::Error, mentat_query_pull::errors::ErrorKind);
TranslatorError(mentat_query_translator::Error, mentat_query_translator::ErrorKind);
SqlError(mentat_sql::Error, mentat_sql::ErrorKind);
SyncError(mentat_tolstoy::Error, mentat_tolstoy::ErrorKind);
}
errors {
PathAlreadyExists(path: String) {
description("path already exists")
display("path {} already exists", path)
}
UnboundVariables(names: BTreeSet<String>) {
description("unbound variables at query execution time")
display("variables {:?} unbound at query execution time", names)
}
InvalidArgumentName(name: String) {
description("invalid argument name")
display("invalid argument name: '{}'", name)
}
UnknownAttribute(name: String) {
description("unknown attribute")
display("unknown attribute: '{}'", name)
}
InvalidVocabularyVersion {
description("invalid vocabulary version")
display("invalid vocabulary version")
}
ConflictingAttributeDefinitions(vocabulary: String, version: ::vocabulary::Version, attribute: String, current: Attribute, requested: Attribute) {
description("conflicting attribute definitions")
display("vocabulary {}/{} already has attribute {}, and the requested definition differs", vocabulary, version, attribute)
}
ExistingVocabularyTooNew(name: String, existing: ::vocabulary::Version, ours: ::vocabulary::Version) {
description("existing vocabulary too new")
display("existing vocabulary too new: wanted {}, got {}", ours, existing)
}
UnexpectedCoreSchema(version: Option<::vocabulary::Version>) {
description("unexpected core schema version")
display("core schema: wanted {}, got {:?}", mentat_db::CORE_SCHEMA_VERSION, version)
}
MissingCoreVocabulary(kw: mentat_query::Keyword) {
description("missing core vocabulary")
display("missing core attribute {}", kw)
}
PreparedQuerySchemaMismatch {
description("schema changed since query was prepared")
display("schema changed since query was prepared")
}
ValueTypeMismatch(provided: ValueType, expected: ValueType) {
description("provided value doesn't match value type")
display("provided value of type {} doesn't match attribute value type {}", provided, expected)
}
}
#[macro_export]
macro_rules! bail {
($e:expr) => (
return Err($e.into());
)
}
#[derive(Debug, Fail)]
pub enum MentatError {
#[fail(display = "path {} already exists", _0)]
PathAlreadyExists(String),
#[fail(display = "variables {:?} unbound at query execution time", _0)]
UnboundVariables(BTreeSet<String>),
#[fail(display = "invalid argument name: '{}'", _0)]
InvalidArgumentName(String),
#[fail(display = "unknown attribute: '{}'", _0)]
UnknownAttribute(String),
#[fail(display = "invalid vocabulary version")]
InvalidVocabularyVersion,
#[fail(display = "vocabulary {}/{} already has attribute {}, and the requested definition differs", _0, _1, _2)]
ConflictingAttributeDefinitions(String, ::vocabulary::Version, String, Attribute, Attribute),
#[fail(display = "existing vocabulary {} too new: wanted {}, got {}", _0, _1, _2)]
ExistingVocabularyTooNew(String, ::vocabulary::Version, ::vocabulary::Version),
#[fail(display = "core schema: wanted {}, got {:?}", _0, _1)]
UnexpectedCoreSchema(::vocabulary::Version, Option<::vocabulary::Version>),
#[fail(display = "Lost the transact() race!")]
UnexpectedLostTransactRace,
#[fail(display = "missing core attribute {}", _0)]
MissingCoreVocabulary(mentat_query::Keyword),
#[fail(display = "schema changed since query was prepared")]
PreparedQuerySchemaMismatch,
#[fail(display = "provided value of type {} doesn't match attribute value type {}", _0, _1)]
ValueTypeMismatch(ValueType, ValueType),
}

View file

@ -11,7 +11,8 @@
#![recursion_limit="128"]
#[macro_use]
extern crate error_chain;
extern crate failure_derive;
extern crate failure;
#[macro_use]
extern crate lazy_static;
@ -101,9 +102,10 @@ macro_rules! kw {
};
}
#[macro_use]
pub mod errors;
pub mod conn;
pub mod entity_builder;
pub mod errors;
pub mod ident;
pub mod query;
pub mod query_builder;

View file

@ -74,7 +74,7 @@ pub use mentat_query_projector::{
};
use errors::{
ErrorKind,
MentatError,
Result,
};
@ -178,7 +178,7 @@ fn algebrize_query<T>
// If they aren't, the user has made an error -- perhaps writing the wrong variable in `:in`, or
// not binding in the `QueryInput`.
if !unbound.is_empty() {
bail!(ErrorKind::UnboundVariables(unbound.into_iter().map(|v| v.to_string()).collect()));
bail!(MentatError::UnboundVariables(unbound.into_iter().map(|v| v.to_string()).collect()));
}
Ok(algebrized)
}
@ -211,7 +211,7 @@ fn fetch_values<'sqlite>
fn lookup_attribute(schema: &Schema, attribute: &Keyword) -> Result<KnownEntid> {
schema.get_entid(attribute)
.ok_or_else(|| ErrorKind::UnknownAttribute(attribute.name().into()).into())
.ok_or_else(|| MentatError::UnknownAttribute(attribute.name().into()).into())
}
/// Return a single value for the provided entity and attribute.
@ -398,7 +398,7 @@ pub fn q_prepare<'sqlite, 'schema, 'cache, 'query, T>
if !unbound.is_empty() {
// TODO: Allow binding variables at execution time, not just
// preparation time.
bail!(ErrorKind::UnboundVariables(unbound.into_iter().map(|v| v.to_string()).collect()));
bail!(MentatError::UnboundVariables(unbound.into_iter().map(|v| v.to_string()).collect()));
}
if algebrized.is_known_empty() {

View file

@ -34,7 +34,7 @@ use ::{
};
use errors::{
ErrorKind,
MentatError,
Result,
};
@ -56,7 +56,7 @@ impl<'a> QueryBuilder<'a> {
}
pub fn bind_ref_from_kw(&mut self, var: &str, value: Keyword) -> Result<&mut Self> {
let entid = self.store.conn().current_schema().get_entid(&value).ok_or(ErrorKind::UnknownAttribute(value.to_string()))?;
let entid = self.store.conn().current_schema().get_entid(&value).ok_or(MentatError::UnknownAttribute(value.to_string()))?;
self.values.insert(Variable::from_valid_name(var), TypedValue::Ref(entid.into()));
Ok(self)
}

View file

@ -84,7 +84,7 @@ impl Store {
pub fn open_empty(path: &str) -> Result<Store> {
if !path.is_empty() {
if Path::new(path).exists() {
bail!(ErrorKind::PathAlreadyExists(path.to_string()));
bail!(MentatError::PathAlreadyExists(path.to_string()));
}
}
@ -124,7 +124,7 @@ impl Store {
pub fn open_empty_with_key(path: &str, encryption_key: &str) -> Result<Store> {
if !path.is_empty() {
if Path::new(path).exists() {
bail!(ErrorKind::PathAlreadyExists(path.to_string()));
bail!(MentatError::PathAlreadyExists(path.to_string()));
}
}

View file

@ -121,7 +121,7 @@ use ::conn::{
};
use ::errors::{
ErrorKind,
MentatError,
Result,
};
@ -375,17 +375,17 @@ trait HasCoreSchema {
impl<T> HasCoreSchema for T where T: HasSchema {
fn core_type(&self, t: ValueType) -> Result<KnownEntid> {
self.entid_for_type(t)
.ok_or_else(|| ErrorKind::MissingCoreVocabulary(DB_SCHEMA_VERSION.clone()).into())
.ok_or_else(|| MentatError::MissingCoreVocabulary(DB_SCHEMA_VERSION.clone()).into())
}
fn core_entid(&self, ident: &Keyword) -> Result<KnownEntid> {
self.get_entid(ident)
.ok_or_else(|| ErrorKind::MissingCoreVocabulary(DB_SCHEMA_VERSION.clone()).into())
.ok_or_else(|| MentatError::MissingCoreVocabulary(DB_SCHEMA_VERSION.clone()).into())
}
fn core_attribute(&self, ident: &Keyword) -> Result<KnownEntid> {
self.attribute_for_ident(ident)
.ok_or_else(|| ErrorKind::MissingCoreVocabulary(DB_SCHEMA_VERSION.clone()).into())
.ok_or_else(|| MentatError::MissingCoreVocabulary(DB_SCHEMA_VERSION.clone()).into())
.map(|(_, e)| e)
}
}
@ -568,7 +568,7 @@ pub trait VersionedStore: HasVocabularies + HasSchema {
// We have two vocabularies with the same name, same version, and
// different definitions for an attribute. That's a coding error.
// We can't accept this vocabulary.
bail!(ErrorKind::ConflictingAttributeDefinitions(
bail!(MentatError::ConflictingAttributeDefinitions(
definition.name.to_string(),
definition.version,
pair.0.to_string(),
@ -615,13 +615,13 @@ pub trait VersionedStore: HasVocabularies + HasSchema {
fn verify_core_schema(&self) -> Result<()> {
if let Some(core) = self.read_vocabulary_named(&DB_SCHEMA_CORE)? {
if core.version != CORE_SCHEMA_VERSION {
bail!(ErrorKind::UnexpectedCoreSchema(Some(core.version)));
bail!(MentatError::UnexpectedCoreSchema(CORE_SCHEMA_VERSION, Some(core.version)));
}
// TODO: check things other than the version.
} else {
// This would be seriously messed up.
bail!(ErrorKind::UnexpectedCoreSchema(None));
bail!(MentatError::UnexpectedCoreSchema(CORE_SCHEMA_VERSION, None));
}
Ok(())
}
@ -682,7 +682,7 @@ impl<'a, 'c> VersionedStore for InProgress<'a, 'c> {
VocabularyCheck::NotPresent => self.install_vocabulary(definition),
VocabularyCheck::PresentButNeedsUpdate { older_version } => self.upgrade_vocabulary(definition, older_version),
VocabularyCheck::PresentButMissingAttributes { attributes } => self.install_attributes_for(definition, attributes),
VocabularyCheck::PresentButTooNew { newer_version } => Err(ErrorKind::ExistingVocabularyTooNew(definition.name.to_string(), newer_version.version, definition.version).into()),
VocabularyCheck::PresentButTooNew { newer_version } => Err(MentatError::ExistingVocabularyTooNew(definition.name.to_string(), newer_version.version, definition.version).into()),
}
}
@ -701,7 +701,7 @@ impl<'a, 'c> VersionedStore for InProgress<'a, 'c> {
out.insert(definition.name.clone(), VocabularyOutcome::Existed);
},
VocabularyCheck::PresentButTooNew { newer_version } => {
bail!(ErrorKind::ExistingVocabularyTooNew(definition.name.to_string(), newer_version.version, definition.version));
bail!(MentatError::ExistingVocabularyTooNew(definition.name.to_string(), newer_version.version, definition.version));
},
c @ VocabularyCheck::NotPresent |
@ -868,7 +868,7 @@ impl<T> HasVocabularies for T where T: HasSchema + Queryable {
attributes: attributes,
}))
},
Some(_) => bail!(ErrorKind::InvalidVocabularyVersion),
Some(_) => bail!(MentatError::InvalidVocabularyVersion),
}
} else {
Ok(None)

View file

@ -61,8 +61,7 @@ use mentat::query::q_uncached;
use mentat::conn::Conn;
use mentat::errors::{
Error,
ErrorKind,
MentatError,
};
#[test]
@ -234,11 +233,11 @@ fn test_unbound_inputs() {
let results = q_uncached(&c, &db.schema,
"[:find ?i . :in ?e :where [?e :db/ident ?i]]", inputs);
match results {
Result::Err(Error(ErrorKind::UnboundVariables(vars), _)) => {
match results.expect_err("expected unbound variables").downcast().expect("expected specific error") {
MentatError::UnboundVariables(vars) => {
assert_eq!(vars, vec!["?e".to_string()].into_iter().collect());
},
_ => panic!("Expected unbound variables."),
_ => panic!("Expected UnboundVariables variant."),
}
}
@ -412,8 +411,8 @@ fn test_fulltext() {
[?a :foo/term ?term]
]"#;
let r = conn.q_once(&mut c, query, None);
match r {
Err(Error(ErrorKind::QueryError(mentat_query_algebrizer::ErrorKind::InvalidArgument(PlainSymbol(s), ty, i)), _)) => {
match r.expect_err("expected query to fail").downcast() {
Ok(mentat_query_algebrizer::AlgebrizerError::InvalidArgument(PlainSymbol(s), ty, i)) => {
assert_eq!(s, "fulltext");
assert_eq!(ty, "string");
assert_eq!(i, 2);
@ -427,8 +426,8 @@ fn test_fulltext() {
[?a :foo/term ?term]
[(fulltext $ :foo/fts ?a) [[?x ?val]]]]"#;
let r = conn.q_once(&mut c, query, None);
match r {
Err(Error(ErrorKind::QueryError(mentat_query_algebrizer::ErrorKind::InvalidArgument(PlainSymbol(s), ty, i)), _)) => {
match r.expect_err("expected query to fail").downcast() {
Ok(mentat_query_algebrizer::AlgebrizerError::InvalidArgument(PlainSymbol(s), ty, i)) => {
assert_eq!(s, "fulltext");
assert_eq!(ty, "string");
assert_eq!(i, 2);
@ -583,42 +582,25 @@ fn test_aggregates_type_handling() {
// No type limits => can't do it.
let r = store.q_once(r#"[:find (sum ?v) . :where [_ _ ?v]]"#, None);
let all_types = ValueTypeSet::any();
match r {
Result::Err(
Error(
ErrorKind::TranslatorError(
::mentat_query_translator::ErrorKind::ProjectorError(
::mentat_query_projector::errors::ErrorKind::CannotApplyAggregateOperationToTypes(
SimpleAggregationOp::Sum,
types
),
)
),
_)) => {
match r.expect_err("expected query to fail").downcast() {
Ok(::mentat_query_projector::errors::ProjectorError::CannotApplyAggregateOperationToTypes(
SimpleAggregationOp::Sum, types)) => {
assert_eq!(types, all_types);
},
r => panic!("Unexpected: {:?}", r),
e => panic!("Unexpected error type {:?}", e),
}
// You can't sum instants.
let r = store.q_once(r#"[:find (sum ?v) .
:where [_ _ ?v] [(type ?v :db.type/instant)]]"#,
None);
match r {
Result::Err(
Error(
ErrorKind::TranslatorError(
::mentat_query_translator::ErrorKind::ProjectorError(
::mentat_query_projector::errors::ErrorKind::CannotApplyAggregateOperationToTypes(
match r.expect_err("expected query to fail").downcast() {
Ok(::mentat_query_projector::errors::ProjectorError::CannotApplyAggregateOperationToTypes(
SimpleAggregationOp::Sum,
types
),
)
),
_)) => {
types)) => {
assert_eq!(types, ValueTypeSet::of_one(ValueType::Instant));
},
r => panic!("Unexpected: {:?}", r),
e => panic!("Unexpected error type {:?}", e),
}
// But you can count them.
@ -1354,19 +1336,13 @@ fn test_aggregation_implicit_grouping() {
[?person :foo/play ?game]
[?person :foo/is-vegetarian true]
[?person :foo/name ?name]]"#, None);
match res {
Result::Err(
Error(
ErrorKind::TranslatorError(
::mentat_query_translator::ErrorKind::ProjectorError(
::mentat_query_projector::errors::ErrorKind::AmbiguousAggregates(mmc, cc)
)
), _)) => {
match res.expect_err("expected query to fail").downcast() {
Ok(::mentat_query_projector::errors::ProjectorError::AmbiguousAggregates(mmc, cc)) => {
assert_eq!(mmc, 2);
assert_eq!(cc, 1);
},
r => {
panic!("Unexpected result {:?}.", r);
e => {
panic!("Unexpected error type {:?}.", e);
},
}

View file

@ -59,10 +59,7 @@ use mentat::entity_builder::{
TermBuilder,
};
use mentat::errors::{
Error,
ErrorKind,
};
use mentat::errors::MentatError;
lazy_static! {
static ref FOO_NAME: Keyword = {
@ -289,8 +286,8 @@ fn test_add_vocab() {
// Scoped borrow of `conn`.
{
let mut in_progress = conn.begin_transaction(&mut sqlite).expect("begun successfully");
match in_progress.ensure_vocabulary(&foo_v1_malformed) {
Result::Err(Error(ErrorKind::ConflictingAttributeDefinitions(vocab, version, attr, theirs, ours), _)) => {
match in_progress.ensure_vocabulary(&foo_v1_malformed).expect_err("expected vocabulary to fail").downcast() {
Ok(MentatError::ConflictingAttributeDefinitions(vocab, version, attr, theirs, ours)) => {
assert_eq!(vocab.as_str(), ":org.mozilla/foo");
assert_eq!(attr.as_str(), ":foo/baz");
assert_eq!(version, 1);

View file

@ -5,6 +5,8 @@ workspace = ".."
authors = ["Grisha Kruglov <gkruglov@mozilla.com>"]
[dependencies]
failure = "0.1.1"
failure_derive = "0.1.1"
futures = "0.1"
hyper = "0.11"
tokio-core = "0.1"
@ -15,8 +17,6 @@ serde_derive = "1.0"
lazy_static = "0.2"
uuid = { version = "0.5", features = ["v4", "serde"] }
error-chain = { git = "https://github.com/rnewman/error-chain", branch = "rnewman/sync" }
[dependencies.mentat_core]
path = "../core"

View file

@ -10,63 +10,34 @@
#![allow(dead_code)]
use std;
use hyper;
use rusqlite;
use uuid;
use mentat_db;
use serde_cbor;
use serde_json;
use failure::Error;
error_chain! {
types {
Error, ErrorKind, ResultExt, Result;
}
foreign_links {
IOError(std::io::Error);
HttpError(hyper::Error);
HyperUriError(hyper::error::UriError);
SqlError(rusqlite::Error);
UuidParseError(uuid::ParseError);
Utf8Error(std::str::Utf8Error);
JsonError(serde_json::Error);
CborError(serde_cbor::error::Error);
}
links {
DbError(mentat_db::Error, mentat_db::ErrorKind);
}
errors {
TxIncorrectlyMapped(n: usize) {
description("encountered more than one uuid mapping for tx")
display("expected one, found {} uuid mappings for tx", n)
}
UnexpectedState(t: String) {
description("encountered unexpected state")
display("encountered unexpected state: {}", t)
}
NotYetImplemented(t: String) {
description("not yet implemented")
display("not yet implemented: {}", t)
}
DuplicateMetadata(k: String) {
description("encountered more than one metadata value for key")
display("encountered more than one metadata value for key: {}", k)
}
TxProcessorUnfinished {
description("Tx processor couldn't finish")
display("Tx processor couldn't finish")
}
BadServerResponse(s: String) {
description("Received bad response from the server")
display("Received bad response from the server: {}", s)
}
}
#[macro_export]
macro_rules! bail {
($e:expr) => (
return Err($e.into());
)
}
pub type Result<T> = ::std::result::Result<T, Error>;
#[derive(Debug, Fail)]
pub enum TolstoyError {
#[fail(display = "Received bad response from the server: {}", _0)]
BadServerResponse(String),
#[fail(display = "encountered more than one metadata value for key: {}", _0)]
DuplicateMetadata(String),
#[fail(display = "transaction processor didn't say it was done")]
TxProcessorUnfinished,
#[fail(display = "expected one, found {} uuid mappings for tx", _0)]
TxIncorrectlyMapped(usize),
#[fail(display = "encountered unexpected state: {}", _0)]
UnexpectedState(String),
#[fail(display = "not yet implemented: {}", _0)]
NotYetImplemented(String),
}

View file

@ -8,11 +8,9 @@
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
// For error_chain:
#![recursion_limit="128"]
extern crate failure;
#[macro_use]
extern crate error_chain;
extern crate failure_derive;
#[macro_use]
extern crate lazy_static;
@ -33,16 +31,15 @@ extern crate mentat_core;
extern crate rusqlite;
extern crate uuid;
#[macro_use]
pub mod errors;
pub mod schema;
pub mod metadata;
pub mod tx_processor;
pub mod errors;
pub mod syncer;
pub mod tx_mapper;
pub use syncer::Syncer;
pub use errors::{
Error,
ErrorKind,
TolstoyError,
Result,
ResultExt,
};

View file

@ -15,7 +15,7 @@ use uuid::Uuid;
use schema;
use errors::{
ErrorKind,
TolstoyError,
Result,
};
@ -42,7 +42,7 @@ impl HeadTrackable for SyncMetadataClient {
let updated = tx.execute("UPDATE tolstoy_metadata SET value = ? WHERE key = ?",
&[&uuid_bytes, &schema::REMOTE_HEAD_KEY])?;
if updated != 1 {
bail!(ErrorKind::DuplicateMetadata(schema::REMOTE_HEAD_KEY.into()));
bail!(TolstoyError::DuplicateMetadata(schema::REMOTE_HEAD_KEY.into()));
}
Ok(())
}

View file

@ -31,7 +31,7 @@ use metadata::HeadTrackable;
use schema::ensure_current_version;
use errors::{
ErrorKind,
TolstoyError,
Result,
};
@ -179,7 +179,7 @@ impl Syncer {
let mut uploader = UploadingTxReceiver::new(remote_client, remote_head);
Processor::process(db_tx, from_tx, &mut uploader)?;
if !uploader.is_done {
bail!(ErrorKind::TxProcessorUnfinished);
bail!(TolstoyError::TxProcessorUnfinished);
}
// Last tx uuid uploaded by the tx receiver.
// It's going to be our new head.
@ -222,7 +222,7 @@ impl Syncer {
// without walking the table at all, and use the tx index.
Processor::process(&db_tx, None, &mut inquiring_tx_receiver)?;
if !inquiring_tx_receiver.is_done {
bail!(ErrorKind::TxProcessorUnfinished);
bail!(TolstoyError::TxProcessorUnfinished);
}
let have_local_changes = match inquiring_tx_receiver.last_tx {
Some(tx) => {
@ -257,7 +257,7 @@ impl Syncer {
Syncer::upload_ours(&mut db_tx, Some(upload_from_tx), &remote_client, &remote_head)?;
} else {
d(&format!("Unable to fast-forward the server; missing local tx mapping"));
bail!(ErrorKind::TxIncorrectlyMapped(0));
bail!(TolstoyError::TxIncorrectlyMapped(0));
}
// We diverged from the server.
@ -265,7 +265,7 @@ impl Syncer {
} else {
d(&format!("server changed since last sync."));
bail!(ErrorKind::NotYetImplemented(
bail!(TolstoyError::NotYetImplemented(
format!("Can't yet sync against changed server. Local head {:?}, remote head {:?}", locally_known_remote_head, remote_head)
));
}

View file

@ -14,7 +14,7 @@ use uuid::Uuid;
use mentat_core::Entid;
use errors::{
ErrorKind,
TolstoyError,
Result,
};
@ -59,7 +59,7 @@ impl TxMapper {
if txs.len() == 0 {
return Ok(None);
} else if txs.len() > 1 {
bail!(ErrorKind::TxIncorrectlyMapped(txs.len()));
bail!(TolstoyError::TxIncorrectlyMapped(txs.len()));
}
Ok(Some(txs.remove(0)?))
}
@ -79,7 +79,7 @@ impl TxMapper {
if uuids.len() == 0 {
return Ok(None);
} else if uuids.len() > 1 {
bail!(ErrorKind::TxIncorrectlyMapped(uuids.len()));
bail!(TolstoyError::TxIncorrectlyMapped(uuids.len()));
}
Ok(Some(uuids.remove(0)?))
}

View file

@ -20,6 +20,8 @@ test = false
[dependencies]
combine = "2.2.2"
env_logger = "0.5"
failure = "0.1.1"
failure_derive = "0.1.1"
getopts = "0.2"
lazy_static = "0.2"
linefeed = "0.4"
@ -28,7 +30,6 @@ tabwriter = "1"
tempfile = "1.1"
termion = "1"
time = "0.1"
error-chain = { git = "https://github.com/rnewman/error-chain", branch = "rnewman/sync" }
[dependencies.rusqlite]
version = "0.13"

View file

@ -30,14 +30,26 @@ use combine::combinator::{
try,
};
use errors as cli;
use CliError;
use edn;
use failure::{
Compat,
Error,
};
use mentat::{
CacheDirection,
};
#[macro_export]
macro_rules! bail {
($e:expr) => (
return Err($e.into());
)
}
pub static COMMAND_CACHE: &'static str = &"cache";
pub static COMMAND_CLOSE: &'static str = &"close";
pub static COMMAND_EXIT_LONG: &'static str = &"exit";
@ -188,7 +200,7 @@ impl Command {
}
}
pub fn command(s: &str) -> Result<Command, cli::Error> {
pub fn command(s: &str) -> Result<Command, Error> {
let path = || many1::<String, _>(satisfy(|c: char| !c.is_whitespace()));
let argument = || many1::<String, _>(satisfy(|c: char| !c.is_whitespace()));
let arguments = || sep_end_by::<Vec<_>, _, _>(many1(satisfy(|c: char| !c.is_whitespace())), many1::<Vec<_>, _>(space())).expected("arguments");
@ -202,7 +214,7 @@ pub fn command(s: &str) -> Result<Command, cli::Error> {
let edn_arg_parser = || spaces()
.with(look_ahead(string("[").or(string("{")))
.with(many1::<Vec<_>, _>(try(any())))
.and_then(|args| -> Result<String, cli::Error> {
.and_then(|args| -> Result<String, Compat<Error>> {
Ok(args.iter().collect())
})
);
@ -217,10 +229,10 @@ pub fn command(s: &str) -> Result<Command, cli::Error> {
.with(arguments())
.map(move |args| {
if args.len() < num_args {
bail!(cli::ErrorKind::CommandParse("Missing required argument".to_string()));
bail!(CliError::CommandParse("Missing required argument".to_string()));
}
if args.len() > num_args {
bail!(cli::ErrorKind::CommandParse(format!("Unrecognized argument {:?}", args[num_args])));
bail!(CliError::CommandParse(format!("Unrecognized argument {:?}", args[num_args])));
}
Ok(args)
})
@ -239,7 +251,7 @@ pub fn command(s: &str) -> Result<Command, cli::Error> {
.with(no_arg_parser())
.map(|args| {
if !args.is_empty() {
bail!(cli::ErrorKind::CommandParse(format!("Unrecognized argument {:?}", args[0])) );
bail!(CliError::CommandParse(format!("Unrecognized argument {:?}", args[0])) );
}
Ok(Command::Close)
});
@ -248,7 +260,7 @@ pub fn command(s: &str) -> Result<Command, cli::Error> {
.with(no_arg_parser())
.map(|args| {
if !args.is_empty() {
bail!(cli::ErrorKind::CommandParse(format!("Unrecognized argument {:?}", args[0])) );
bail!(CliError::CommandParse(format!("Unrecognized argument {:?}", args[0])) );
}
Ok(Command::Exit)
});
@ -302,7 +314,7 @@ pub fn command(s: &str) -> Result<Command, cli::Error> {
.with(no_arg_parser())
.map(|args| {
if !args.is_empty() {
bail!(cli::ErrorKind::CommandParse(format!("Unrecognized argument {:?}", args[0])) );
bail!(CliError::CommandParse(format!("Unrecognized argument {:?}", args[0])) );
}
Ok(Command::Schema)
});
@ -312,10 +324,10 @@ pub fn command(s: &str) -> Result<Command, cli::Error> {
.with(arguments())
.map(|args| {
if args.len() < 1 {
bail!(cli::ErrorKind::CommandParse("Missing required argument".to_string()));
bail!(CliError::CommandParse("Missing required argument".to_string()));
}
if args.len() > 2 {
bail!(cli::ErrorKind::CommandParse(format!("Unrecognized argument {:?}", args[2])));
bail!(CliError::CommandParse(format!("Unrecognized argument {:?}", args[2])));
}
Ok(Command::Sync(args.clone()))
});
@ -335,7 +347,7 @@ pub fn command(s: &str) -> Result<Command, cli::Error> {
spaces()
.skip(token('.'))
.with(choice::<[&mut Parser<Input = _, Output = Result<Command, cli::Error>>; 16], _>
.with(choice::<[&mut Parser<Input = _, Output = Result<Command, Error>>; 16], _>
([&mut try(help_parser),
&mut try(import_parser),
&mut try(timer_parser),
@ -353,7 +365,7 @@ pub fn command(s: &str) -> Result<Command, cli::Error> {
&mut try(sync_parser),
&mut try(transact_parser)]))
.parse(s)
.unwrap_or((Err(cli::ErrorKind::CommandParse(format!("Invalid command {:?}", s)).into()), "")).0
.unwrap_or((Err(CliError::CommandParse(format!("Invalid command {:?}", s)).into()), "")).0
}
#[cfg(test)]

View file

@ -1,37 +0,0 @@
// Copyright 2016 Mozilla
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use
// this file except in compliance with the License. You may obtain a copy of the
// License at http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#![allow(dead_code)]
use rusqlite;
use mentat::errors as mentat;
error_chain! {
types {
Error, ErrorKind, ResultExt, Result;
}
foreign_links {
Rusqlite(rusqlite::Error);
IoError(::std::io::Error);
}
links {
MentatError(mentat::Error, mentat::ErrorKind);
}
errors {
CommandParse(message: String) {
description("An error occured parsing the entered command")
display("{}", message)
}
}
}

View file

@ -28,7 +28,7 @@ use command_parser::{
command,
};
use errors as cli;
use failure::Error;
/// Starting prompt
const DEFAULT_PROMPT: &'static str = "mentat=> ";
@ -97,7 +97,7 @@ impl InputReader {
/// Reads a single command, item, or statement from `stdin`.
/// Returns `More` if further input is required for a complete result.
/// In this case, the input received so far is buffered internally.
pub fn read_input(&mut self) -> Result<InputResult, cli::Error> {
pub fn read_input(&mut self) -> Result<InputResult, Error> {
let prompt = if self.in_process_cmd.is_some() { MORE_PROMPT } else { DEFAULT_PROMPT };
let prompt = format!("{blue}{prompt}{reset}",
blue = color::Fg(::BLUE),

View file

@ -10,12 +10,13 @@
#![crate_name = "mentat_cli"]
#[macro_use] extern crate failure_derive;
#[macro_use] extern crate log;
#[macro_use] extern crate lazy_static;
#[macro_use] extern crate error_chain;
extern crate combine;
extern crate env_logger;
extern crate failure;
extern crate getopts;
extern crate linefeed;
extern crate rusqlite;
@ -41,7 +42,12 @@ static GREEN: color::Rgb = color::Rgb(0x77, 0xFF, 0x99);
pub mod command_parser;
pub mod input;
pub mod repl;
pub mod errors;
#[derive(Debug, Fail)]
pub enum CliError {
#[fail(display = "{}", _0)]
CommandParse(String),
}
pub fn run() -> i32 {
env_logger::init();

View file

@ -11,6 +11,11 @@
use std::io::Write;
use std::process;
use failure::{
err_msg,
Error,
};
use tabwriter::TabWriter;
use termion::{
@ -383,7 +388,7 @@ impl Repl {
if self.path.is_empty() || path != self.path {
let next = match encryption_key {
#[cfg(not(feature = "sqlcipher"))]
Some(_) => bail!(".open_encrypted and .empty_encrypted require the sqlcipher Mentat feature"),
Some(_) => return Err(err_msg(".open_encrypted and .empty_encrypted require the sqlcipher Mentat feature")),
#[cfg(feature = "sqlcipher")]
Some(k) => {
if empty {
@ -467,7 +472,7 @@ impl Repl {
output.flush().unwrap();
}
fn print_results(&self, query_output: QueryOutput) -> Result<(), ::errors::Error> {
fn print_results(&self, query_output: QueryOutput) -> Result<(), Error> {
let stdout = ::std::io::stdout();
let mut output = TabWriter::new(stdout.lock());